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Anatomical Position
Universally accepted standard position. The human body is erect with feet only slightly apart, head and toes pointed forward, and arms hanging at the sides with palms facing forward.
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Axial
Relating to head, neck, and trunk, the axis of the body
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Appendicular
Relating to limbs and thier attachments to the axis
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Abdominal
Pertaining to the anterior body trunk region inferior to the ribs
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Acromial
Pertaining to the point of the shoulder
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Antebrachial
Pertaining to the forearm
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Antecubital
Pertaining to the anterior surface of the elbow
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Axillary
Pertaining to the armpit
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Brachial
Pertaining to the arm
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Buccal
Pertaining to the cheek
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Carpal
Pertaining to the wrist
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Cervical
Pertaining to the neck region
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Coxal
Pertaining to the hip
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Crural
Pertaining to the leg
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Digital
Pertaining to the fingers or toes
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Femoral
Pertaining to the thigh
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Fibular (peroneal)
Pertaining to the side of the leg
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Frontal
Pertaining to the forehead
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Hallux
Pertaining to the great toe
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Inguinal
Pertaining to the groin
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Mammary
Pertaining to the breast
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Mental
Pertaining to the chin
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Nasal
Pertaining to the nose
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Oral
Pertaining to the mouth
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Orbital
Pertaining to the bony eye socket (orbit)
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Palmar
Pertaining to the palm of the hand
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Patellar
Pertaining to the knee
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Pedal
Pertaining to the foot
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Pelvic
Pertaining to the pelvis region
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Pollex
Pertaining to the thumb
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Pubic
Pertaining to the genital region
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Sternal
Pertaining to the region of the breastbone
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Tarsal
Pertaining to the ankle
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Thoracic
Pertaining to the chest
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Umbilical
Pertaining to the navel
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Calcaneal
Pertaining to the heel of the foot
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Chepalic
Pertaining to the head
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Dorsum
Pertaining to the back
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Gluteal
Pertaining to the buttocks or rump
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Lumbar
Pertaining to the area of the back between the ribs and hips; the loin
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Manus
Pertaining to the hand
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Occipital
Pertaining to the posterior aspect of the head or base of the skull
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Olecranal
Pertaining to the posterior aspect of the elbow
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Otic
Pertaining to the ear
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Perineal
Pertaining to the region between the anus and external genitalia
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Plantar
Pertaining to the sole of the foot
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Popliteal
Pertaining to the back of the knee
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Sacral
Pertaining to the region between the hips (overlaying the sacrum)
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Scapular
Pertaining to the scapula or sholder blade area
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Sural
Pertaining to the calf or posterior surface of the leg
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Vertebal
Pertaining to the area of the spinal column
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Medial
Toward the midline
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Lateral
Away from the midline or median plane
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Cephalad (cranial)
Toward the head
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Proximal
Nearer the trunk or attached end
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Distal
Farther from the trunk or point of attachment
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Superficial (external)
Toward or at the body surface
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Deep (internal)
Away from the body surface
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Plane
An imaginary surface or line to section the human body
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Sagittal Plane
A plane that runs longitudinally and divides the body into right and lefts parts.
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Median or Midsagittal Plane
When the body is divided into equal parts right down the median plane
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Parasagittal Planes
All other sagitttal planes not divided into equal parts
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Frontal Plane
(coronal plane)
The longitudinal plane that divides the body (or an organ) into anterior and posterior parts
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Transverse Plane
Runs horizontally dividing the body into superior and inferior parts
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Cross Sections
When organs are sectioned along the transverse plane
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Dorsal Body Cavity
Contains the cranial and vertebral (or spinal) cavity
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Cranial Cavity
In which the brain is enclosed within the rigid skull
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Vertebral (spinal) Cavity
Within which the delicate spinal cord is protected by the bony vertebral column
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Ventral Body Cavity
Contains the thoracic cavity and abdominopelvic cavity
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Thoracic Cavity
Seperated by the rest of the ventral cavity by the dome-shaped diaphragm. Contains the heart and lungs protected by the bony rib cage
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Abdominopelvic Cavity
Inferior to the diaphragm. Combines the abdominal and pelvic cavity
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Abdominal Cavity
Houses the stomach, intestines, liver, and other organs
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Pelvic Cavity
Partially enclosed by the bony pelvis and contains the reproductive organs, bladder, and rectum
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Serous Membrane
(serosa)
An exceedingly thin, double layered membrane that covers the walls of the ventral body cavity and the outer surfaces of the organs it contains.
These membranes produce thin lubricating fluid that allows the visceral organs to slide over one another or to rub up against the body wall without friction. Serous membranes are compartmentalized so that infection of one organ is prevented from spreading to others.
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Parietal Serosa
The part of the membrane lining the cavity walls
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Visceral Serosa
Covering the external surface of the organs within the ventral cavity
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Peritoneum
The serosa lining the abdominal cavity and covering its organs
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Pleura
The serosa lining that encloses the lungs
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Pericardium
The serosa lining that encloses the heart
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Quadrants
The four equal regions the abdominopelvic cavity is divided into RUQ,LUQ,RLQ,LLQ
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Umbilical Region
The centermost region, which includes the imbulicus
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Epigastric Region
Immediately superior to the umbilical region; overlies most of the stomach
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Hypogastric (pubic) Region
Immediately inferior to the umbilical region; encompasses the pubic area
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Iliac (inguinal) REgions
Lateral to the hypogastric region and overlying the superior parts of the hip bones
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Lumbar Regions
Between the ribs and the flaring portions of the hip bones; lateral to the umbilical region
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Hypochondriac Regions
Flanking the epigastric region laterally and overlying the lower ribs
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Oral Cavity
The mouth, containing the tongue and teeth. It is continuous with the rest of the digestive tube, which opens to the exterior at the anus.
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Nasal Cavity
Located within and posterior to the nose; is part of the passages of the respiratory system.
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Orbital Cavities
Located in the skull and house the eyes, presenting them in an anterior position.
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Middle Ear Cavities
Lies just medial to an eardrum and is carved into the bony skull. Contain tiny bones that transmit sound vibrations to the organ of hearing in the inner ears.
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Synovial Cavities
Are joint cavities that are enclosed with fibrous capsules that surround the freely moveable joints of the body, such as the vertebrae, knee, and hip joints. They secrete a lubricating fluid that reduces friction as the enclosed structures move across one another.
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Epithelial Membranes
Composite membranes with epithelial and connective tissue elements
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Cutaneous Membrane
(skin)
Covers and protects the body surface
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Mucous Membrane
Line body cavities (hollow organs) that open to the exterior
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Thymus
An irregular mass of glandular tissue overlying the heart
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Heart
Medial oval structure enclosed within the pericardium
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Lungs
Flanking the heart of either side
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Trachea
Tubelike "windpipe" running medially down the throat; part of the respiratory system dividing into two branches called bronchi
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Bronchi
Two passageways that plunge laterally into the tissue of the two lungs
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Esophagus
A food chute; the part of the digestive system that transports food from the pharynx (throat) to the stomach
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Diaphragm
A thin muscle attached to the inferior boundary of the rib cage; separates the thoracic and abdominal cavities
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Stomach
A curved organ important in food digestion and temporary food storage
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Greater Omentum
An extension of the peritoneum that covers the abdominal viscera
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Small Intestine
Connected to the stomach and ending just before the saclike cecum
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Large Intestine
A large muscular tube connected to the small intestine and ending at the anus
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Cecum
The initial portion of the large intestine
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Rectum
Terminal part of the large intestine; continuous with the anal canal
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Anus
The opening of the digestive tract (through the anal canal) to the exterior
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Mesentery
An apronlike serous membrane; suspends many of the digestive organs in the abdominal cavity. Invested with blood vessels and large fat deposits.
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Pancreas
A diffuse gland; rests dorsal to and in the mesentery between the first portion of the small intestine and the stomach.
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Spleen
A dark red organ curving around the left lateral side of the stomach. Considered part of the lymphatic system and often called the red blood cell graveyard.
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Liver
Large and brownish red; the most superior organ in the abdominal cavity, directly beneath the diaphragm
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Kidneys
Bean-shaped organs; retroperitoneal (behind the peritoneum
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Adrenal Glands
Large endocrine glands that sit astride the superior margin of each kidney
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Ureter
Tube running from the indented region of the kidney to the urinary bladder
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Urinary Bladder
The sac that serves as the reservoir for urine
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Inferior Vena Cava
The large vein that returns blood to the heart from the lower regions of the body
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Descending Aorta
Deep into the inferior vena cava; the largest artery of the body; carries blood away from the heart down the midline of the body
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Scrotum
Sac that holds the male's testis
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Ductus Deferens
(vas deferens)
Carries sperm from the testis superiorly into the abdominal cavity and joins the urethra. The urethra runs through the penis and carries both urine and sperm out of the body.
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Uterus
The Y-shaped cavity lying against the dorsal wall and beneath the bladder
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Ovary
A small oval structure at the end of the uterine tube
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