Penile erection is related to changes in blood flow. How?
A. Engorgement of the penis with arterial blood compresses the veins in the penis
B. Erection is produced when venous blood outflow from the penis is increased
C. Increased sympathetic input to the penis leads to an erection
D. Increased blood flow to the penis causes the skeletal muscle to undergo prolonged contraction
E. Increased parasympathetic input leads to the release of nitric oxide and vasodilation
Answer:
A. Engorgement of the penis with arterial blood compresses the veins in the penis
E. Increased parasympathetic input leads to the release of nitric oxide and vasodilation
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Although all the anatomical parts of muscle work together to give it it's characteristics, which of the following proteins listed below would be most associated with the characteristics of extensibility?
A) elastic (titin) filaments B) potassium (K+) leak channels C) acetylcholine receptors in the motor end plate D) thick (myosin) filaments
Reciprocal innervation
A. stimulates antagonistic muscles. B. results in reduced resistance to the reflex. C. reinforces the withdrawal reflex. D. inhibits the stretch reflex. E. is associated with the Golgi tendon reflex.
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What will be an ideal response?
Describe the functions of the cytoskeleton
A) produces 95% of the ATP B) stores and processes genetic information C) increases surface area to facilitate diffusion D) strengthens and supports the cells and enables movement of cellular structures and materials E) stores, alters, and packages synthesized products