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Increases heart rate, constricts blood vessels, dilates air passages. Flight or Fight Response.
Origin-Sympathetic Nervous System (Adrenal Gland)
Regulate carbs and fat metabolism in the body. Produce glucose from the blood, and store it as glycogen inside tissues.
Stimulates growth, cell reproduction and regeneration.
Amino-acid, single chain polypeptide
Regulates the development, growth, puberty and reproductive processes of the body
Plays role for social reproduction, particular during and after childbirth.
Stimulates birth and breastfeeding
Produced in response to biological stress
Secretes T(4) and T(3), which regulates the function of the thyroid gland
TSH-- Thyroid Stimulating Hormone
Plays a role in lactation, regulates the immune system.
Reduces blood calcium, ipposing the effects of the parathyroid hormone.
Origin--C-cells of the thyroid
Released in response to stress
Increases blood sugar
Suppresses the immune system
Aids in fat, protein and carb metabolism
Increases reabsorption of ions and water in the kidney
Increases blood volume (which increases blood pressure)
Prevents the production of dilute urine
Can also stimulate the contraction of arteries and capillaries
Regulation of metabolism
Also works to regulate metabolism
Iodine stimulates this
Increases the concentration of calcium in the blood
origin--Chief cells of the parathyroid gland
Neurotransmitter that affects the heart
Increase heart rate
Triggers glucose release
Part of "fight or flight" response
Origin--Sympatheic Nervous System
Name and describe the 2 types of diabetes
Type I--insulin dependent, pancreas stops breaking down glucose in body. Cannot be controlled by diet and exercise. No Cure
Type II--Pancreas still works but not properly. Usually controlled by diet and exercise, but may have to use medication orally or by insulin injections to control.
Describe the systemic blood circulation
Oxygenated blood--Pulmonary Veins--Lt.Atrium--AV (bicuspid) Valve--Lt. Ventricle--Aorta
Describe the pulmonary blood circulation
Deoxygenated blood--Rt. Ventricle--AV (tricuspid) vlave--semilunar valve--Pulmonary Artery--Lungs
Known as "heart strings"....thread-like bands of fivrous tissue that anchor the valves
Major element of cardiac contraction system.
Controls heart rate
Electric impulses that stimulate heart to contract
AV Node (atrivoventricular)
Minimum arterial pressure during relaxation and dilation of the ventricles of the heart
Maximum arterial pressure during contraction of the left ventricle of the heart
Repeated elevated blood pressure over 140/90
Name and function of the 3 types of blood vessels
Arteries--Carry blood away from the heart--Has 3 layers
Capillaries--Enable exchange of water and chemicals btween blood and tissue--Endothelium & connective tissue
Veins--Carry blood from capillaries back to the heart--2 layers
Name the arteries that nourish the heart
Name/Describe/Function of different blood cells
Erthrocyte--RBC--most numerous in body--No nucleus, bioconcave shape--Provide oxygen to tissues
Platelets--Thrombocytes--Purple color, small in shape--Stops the loss of blood from wounds
Leukocytes (WBC)--2 types:granulocytes & agranulocytes--Provide defense of an organism
Components of plasma
Includes: glucose,lipids, proteins, glycoproteins, hormones, amino acid, vitamins
Major function of cardiovascular system
- To transport oxygen and remove carbon monoxide
- Transport nutrients and remove waste
- Fight disease
- Transport horomones
- Regulate temperture
3 functions of blood
Transport to and from tissue (Arteries, Veins, Capillaries)
Maintain homeostasis (Altering blood flow to skin)
Immunity and defense(WBC fight infection)
Name the granulocytes
neutrophil, eosinophil, basophil
Name the agranulocytes
lymphocytes and monocytes