Chapter 7 Flashcards
Acetabulum
Depression in pelvis where femoral head fits
Acidosis
Condition that results form the accumulation of acids in the body. pH <7.35
Acromion process
Where shoulder attaches to clavicle
Adrenal cortex
Outer layer of adrenal gland. Produces hormones to regulate water and sal
Adrenal glands
Located on top of kidneys
Adrenocorticotropic Hormone (ACTH)
Hormone that targets adrenal cortex to secrete cortisol
Afterload
Pressure in the aorta against which the left ventricle must pump blood; increased pressure decreases cardiac output
Agonist
Mimics action of a neurotransmitter or hormone
Arganulocytes
Leukocytes that lack granules
alkalosis
When blood is basic; pH >7.45
Alpha cells
Lockated on islets of langerhans that secrete glucagon
Alpha effects
Stimulation of alpha receptors that results in vasoconstriction
Alveolar ducts
Ducts at the division of respiratory system to separate bronchioles in lower airway; end in cluster of alveoli
Alveoli
Air sacs in lungs that exchange o2 and CO2
Antagonist
Substance that counteracts the effects of something.
Antibody
Protein in immune cells that bind antigens
Antigen
Stimulates protective proteins (antibodies)
Aortic arch
Part of the aorta where brachiocephalic, left common carotid, and subclavian arteries branch
Aortic valve
Between left ventricle and aorta, keeps blood from back flowing into ventricle.
Appendicular skeleton
Arms, legs, pelvis, shoulder girdle
Appendix
Attached to lower border of cecum in lower right quadrant of the abdomen
Arachnoid
Middle of three meninges. Encloses brain and spinal chord
Areolar glands
Protect nipple during nursing.
Artery
Blood away from heart
Arteriol=es
Smallest branch of artery