Physiology 3 Flashcards
1
Q
what occurs during the QRS wave on an electrocardiogram? atrial depolarization AV nodal delay ventricular repolarization ventricular depolarization
A
ventricular depolarization
2
Q
which of the following occur during the T wave of an electrocardiogram? atrial depolarization atrial repolarization ventricular depolarization ventricular repolarization
A
ventricular repolarization
3
Q
which of the following occur during the QRS wave of an electrocardiogram? atrial depolarization atrial repolarization ventricular depolarization ventricular repolarization
A
ventricular depolarization
4
Q
according to starling’s law, which of the following occurs?
- increased stretch produces increased contraction
- increased HR and increased SV
- increased SV with increased BP
- decreased SV with decreased BP
A
increased SV with increased BP
5
Q
which term is used to describe normal inspiration and expiration? reserve volume vital capacity inspiratory and expiratory reserve tidal volume
A
tidal volume
6
Q
which of the following hormones is needed for uterine contractions and breast milk? prolactin FSH oxytocin progesterone
A
oxytocin
7
Q
what do the interstitial cells of Leydig produce? LH FSH Sperm testosterone
A
testosterone
8
Q
in which part of the body is angiotensinogen covered to angiotensin 1? liver lung kidney adrenal cortex
A
liver
9
Q
the limbic system is involved with which of the following? hearing vision emotion digestion
A
emotion
10
Q
which of the following is red, highly oxidized and has large numbers of mitochondria and glycogen? slow twitch fibers fast twitch fibers nuclear chain annulospiral
A
slow twitch fibers
11
Q
spermatogenesis occurs in the \_\_\_ and is stimulated by \_\_\_. interstitial cells of Leydig; FSH interstitial cells of Leydig; LH seminiferous tubules; FSH seminiferous tubules; FSH
A
interstitial cells of Leydig; LH
12
Q
what do the parietal cells of the stomach produce? pepsinogen gastrin mucous intrinsic factor
A
intrinsic factor
13
Q
which the following statements about muscle is true? smooth muscle is striated smooth muscle is stronger skeletal muscle is stronger calmodulin is found in skeletal muscle
A
skeletal muscle is stronger
14
Q
the sympathetic chain, ANS, PNS, and Schwann cells are all derived from which of the following? neuroectoderm ectoderm endoderm mesoderm
A
neuroectoderm
15
Q
blockage of the cerebellar peduncles causes which of the following? cleft palate Arnold chiari type II myelocele meningomyelocele
A
Arnold chiari type II
