Phys 2 Flashcards
1
Q
Which part of the cerebral cortex develops a motor image of the total muscle movement that is to be performed? A. Primary motor cortex B. Supplemental motor cortex C. Premotor cortex D. Supplemental sensory cortex
A
C. Premotor cortex
2
Q
Which of the following inhibits secretion of insulin, glucagon, and gastrin; decreases motility of the stomach and duodenum, and decreases secretion and absorption of the GI tract? A. Glucokinase B. Carnitine C. Somatostatin D. Acetoacetic acids
A
C. Somatostatin
3
Q
The main hormone responsible for controlling feedback of the duodenum is A. CCK B. Chyme C. Motilin D. GIP
A
A. CCK
4
Q
Approximately what percent of the body’s calcium is stored in extracellular fluids? A. < 1 % B. 25% C. 50% D. >75%
A
A. <1%
5
Q
Significant reduction in ECF and blood volume, diminished cardiac output, and hyperkalemia are characteristic of lack of which of the following? A. Aldosterone B. Estrogen C. Cortisol D. DHEA
A
A. Aldosterone
6
Q
Surfactant is a lipoprotein essential to maintain alveolar function. In a healthy fetus, it is formed in the lungs at what time? A. 24 weeks B. 28 weeks C. 34 weeks D. 38 weeks
A
A. 24 weeks
7
Q
In typical sensory pathways, decussation occurs at what level? A. Primary (first order) neurons B. Secondary neurons C. Tertiary neurons D. None
A
B. Secondary neurons
8
Q
Which of the following cell types respond to rapid changes in the visual image? A. Bipolar cells B. Amacrine cells C. X type ganglion cells D. Y type ganglion cells E. Z type ganglion cells
A
D. Y type
9
Q
Control functions for muscle movements of the axial body, neck, shoulders, and hips is located in which of the following areas of the cerebellum? A. Vermis B. Intermediate zone C. Lateral zone D. Cerebrocerebellum
A
A. Vermis
10
Q
For each molecule of glucose that is hydrolyzed in glycolysis, what is the net gain in ATPs A. 2 B. 4 C. 6 D. 8
A
A. 2
11
Q
Hypocalcemia usually becomes lethal at which of the following levels A. 12 mg/dL B. 9.5 mg/dL C. 6 mg/dL D. 4 mg/dL
A
D. 4
12
Q
Which of the following statements is true?
A. The liver has low blood flow and high vascular resistance
B. The liver has low blood flow and low vascular resistance
C. The liver has high blood flow and high vascular resistance
D. The liver has high blood flow and low vascular resistance
A
D. High and low
13
Q
Which of the following landmarks demarcates the sensory cortex from the motor cortex? A. Lateral sulcus B. Central sulcus C. Insula D. Angular gyrus
A
B. Central sulcus
14
Q
The thalamus is derived from which of the following brain divisions? A. Telencephalon B. Diencephalon C. Mesencephalon D. Metencephalon E. Myelencephalon
A
B. Diencephalon
15
Q
Sensory info entering the central nervous system typically decussates at some point in the spinal cord or brain. For visual info, this decussation occurs in the optic chiasma. How much decussation occurs in the optic chiasma? A. 25% B. 50% C. 75% D. 100%
A
B. 50%