Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
|
Hypothalamus
|
Forebrain region that controls processes related to homeostasis; control center for endocrine functions.
|
|
|
Pituitary Gland
|
Pea-sized endocrine gland in the forebrain that interacts closely with the adjacent hypothalamus.
|
|
|
Releasing Hormones
|
Hormones that are released by one gland and encourage hormone secretion by another gland.
|
|
|
Inhibiting Hormones
|
Hormones that are released by one gland and discourage secretion by another gland.
|
|
|
Heart
|
Muscular organ that pumps blood through a body.
|
|
|
Blood
|
Circulatory fluid; in vertebrates it is a fluid connective tissue consisting of plasma, red blood cells, white blood cells, and platelets.
|
|
|
Arteries
|
Large-diameter blood vessels that carry blood away from the heart.
|
|
|
Veins
|
In plant leaves, vascular bundles strengthened with fibers. In animals, large diameter vessels that return blood to the heart.
|
|
|
Capillaries
|
Smallest blood vessels; exchanges with interstitial fluid take place across their walls.
|
|
|
Pulmonary Circuit
|
Circuit through which blood flows from the heart to the lungs and back.
|
|
|
System Circuit
|
Circuit through which blood flows from the heart to the body tissues and back.
|
|
|
Plasma
|
Fluid potion of blood.
|
|
|
Red Blood Cells
|
Hemoglobin-filled blood cell that transports oxygen.
|
|
|
White Blood Cells
|
Vertebrate blood cells with a role in housekeeping tasks and defense; a leukocyte.
|
|
|
Hemoglobin
|
Iron-containing protein that reversibly binds oxygen.
|
|
|
Platelets
|
Cell fragment that helps blood clot.
|
|
|
Atrium
|
Heart chamber that receives blood from veins.
|
|
|
Ventricle
|
Heart chamber that pumps blood into arteries.
|
|
|
Cardiac Cycle
|
Sequence of contraction and relaxation of heart chambers that occurs with each heartbeat.
|
|
|
Systole
|
Contractile phase of the cardiac cycle.
|
|
|
Diastole
|
Relaxation phase of the cardiac cycle.
|
|
|
SA Node
|
Pacemaker: a specialized bit of heart tissue that controls the heartbeat
|
|
|
AV Node
|
The atrioventricular node (abbreviated AV node) is a part of electrical control system of the heart that co-ordinates heart rate.
|
|
|
Vasodilation
|
Widening of a blood vessel when smooth muscle that rings it relaxes.
|
|
|
Vasoconstriction
|
Narrowing of a blood vessel when smooth muscle that rings it contracts.
|
|
|
Diastolic Pressure
|
Blood pressure when ventricles are relaxed.
|
|
|
Systolic Pressure
|
Blood pressure when ventricles are contracting.
|
