The ventral branches or rami of spinal nerves do NOT join to form nerve plexuses in which of the following spinal cord areas?
A) cervical
B) lumbar
C) sacral
D) thoracic
Answer: D) thoracic
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What is the best description of the efferent pathway of a reflex arc?
A. The route by which signals from an integrating center reach effector organs B. Signaling pathway for receptors to influence the integrating center C. The route by which receptors send signals to effectors D. Signals from the integrating center to receptors E. The route by which effector organs send signals to receptors
For the following muscle shapes, which one is thick and tapered like the biceps brachii muscle?
A) fusiform B) parallel C) convergent D) pennate
The binding of a neurotransmitter to inhibitory synapses increases the permeability of the subsynaptic membrane to ____
a. sodium or chloride b. potassium or calcium c. potassium or chloride d. potassium or sodium e. calcium or chloride
A hormone that travels as a bound hormone can bind to any binding protein.
Indicate whether the statement is true or false.