Cell Structures/Organelles

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Define Histology.

The study of the microscopic structure and function of cells and associated tissue.
What is the nucleus?

the largest organelle in the cell
what is a lysosome?

produced by the golgi complex and digests intercellular and extracellular materials.
Name 3 types of fibers found in connective tissue?
- Reticular
- Collagen
- Elastic
Name the different types of connective tissue?
- Adipose
- Elastic
- Reticular
What is another name for connective tissue proper?
- lamina propria
- aka the papillary layer
What are the 2 types of cells found in cartilage?
- chondroblasts
- chondrocytes
What is the periodontium?

hard and soft dental tissue between tooth and alveolar bone
What is perichondrium?

fibrous connective tissue sheath of cartilage containing blood vessels.
what is the most common cell of connective tissue?

fibroblast
What are the four states of connective tissue?
- soft
- firm
- rigid
- fluid
What are the 3 types of lymphocytes?
- B cells
- T cells
- NK cells
What are the 2 layers of the connective tissue proper?
- loose connective tissue- papillary
- dense connective tissue- reticular
What are the two layers of the basal lamina?
- lamina lucida
- lamina densa
What is the name of immature connective tissue?

granulation tissue
What are the three types of specialized connective tissue?
- adipose
- elastic
- reticular
What are the three types of cartilage?
- hyaline
- elastic
- fibrocartilage
What are the two types of growth in cartilage?
- interstitial growth
- appostitional growth
What is the periosteum?

double layer dense connective tissue sheath covering bone.
what are the two types of bone?
- compact
- cancellous
What is the endosteum?

lines the inside of bone
What is the formula for calcium hydroxyapitite?

Ca10(PO4)6(OH)6
What is bone matrix intially formed as?

osteoid
What cells produce osteiod?

osteoblasts
What are the apposed sheets of compact bone matrix called?

lamellae
What makes up the Haversian canal made up of?

the group of osteons
What are the Volkmann's Canals referred to as?

nutrient canals
What is the development of bone called?

ossification
What is another name for immature bone?

woven bone
What are the formed elements of blood?
- Red blood cells
- White blood cells
- platelets
Where are red blood cells formed?

the bone marrow
What is the layer at the bottom of a centrifuged vial?

hematocrit
What's another name for platelets?

thrombocytes
What are the 5 types of WBC's?
- neutrophils(polymorphonuclear) leukocytes
- lymphocytes
- moncytes
- eosinophils
- basophils
What are 3 types of muscle?
- skeletal
- smooth
- cardiac
what are each muscle bundles called?

fascicles
what are muscle cells comprised of?

myofibrils
These are the smallest part of muscle fibrils composed of actin and myosin?

myofilament
Nerve tissue is derived from what layer of the embryo?

neuroectoderm
What is the function of the afferent nerves?

sensory signals from body to brain
An efferent nerve sends signals to and from what part of the body?

motor signals from brain to body
What are the 2 divisions of the nervous system?
- CNS
- PNS
What are the 2 divisions of the PNS?
- Autonomic Nervous System
- Somatic Nervous System
What are the 2 divisions of the Autonomic Nervous System?
- sympathetic
- parasympathetic

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Card Set

Cell Structures/Organelles

Description

Study guide flash cards for Histology

Updated

2013-02-10T02:06:37Z

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