kahoot 12.4 Flashcards
What kind of cells are specialized for exchange with the envt?
Epithelial
How many chromosomes in a human?
46
__ is a rubbery protein fiber that is elastic
Elastin
Depolarizing from the resting potential of -70mv proceeds slowly until it reaches a critical level known as what?
Threshold potential
True or false: Ependymal cells line the internal, fluid filled cavities of the CNS
True
What are rapidly adapting receptors called?
Phasic
What are the 2 subdivisions of the ANS?
Symp and parasympathetic
1 motor neuron, plus all the muscle fibers it innervates, is known as what?
Motor unit
Which chamber of the heart pumps blood to the lungs via the pulmonary artery?
Right ventricle
Flow rate of blood through a vessel is inversely proportional to what?
Vascular resistance
True or false: Factor x converts prothrombin to thrombin
True
What cells release histamine?
Mast cells
What happens to angiotensin II in the blood as it passes through the lungs?
It’s activated
What % of sugar (glucose) is absorbed in the tubules of the glomerular capillaries?
100%
What condition does over-hydration cause in the ECF?
Hypotonicity
What section of the stomach has the thickest musculature?
Antrum
What glands secrete odorless, dilute, and clear sweat?
Eccrine sweat
A hormone whose primary funct. is the regulation of hormone secretion by another endocrine gland is what kind of hormone?
Tropic
Inadequate dietary iodine can lead to what?
Hypothyroidism
True or false: in males, the repro. tract develops from the Mullerian ducts and the Wolffian ducts degenerate
False; it’s the opposite
