How does the function of dendritic spines in the CNS differ from dendrites in the PNS?
What will be an ideal response?
Dendritic spines have polyribosomes to make their own proteins, send signals to other neurons, and are involved in learning, memory, and various pathologies. PNS dendrites receive external information and transfer it within the neuron.
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Answer the following statements true (T) or false (F)
1. In one square inch of skin, there are more oil glands than sweat glands. 2. In one square inch of skin, there are about twice as many pressure sensors as heat sensors. 3. The hypodermis is the layer of the skin found between the epidermis and the dermis. 4. Strong, tough collagen fibers can be found in both the dermis and epidermis of the skin. 5. Hair in certain parts of the body is stimulated to grow by the presence of hormones.
ADH and oxytocin are secreted by
A) neuroglia. B) neurons. C) neuromuscular cells. D) neurosecretory cells.
Which female structure has a similar tissue composition as the penis
a. cervical canal. b. clitoris. c. fallopian tube. d. labia majora. e. myometrium.
Which of the following statements is true concerning sonic muscles?
A) They contract at much higher frequencies than the locomotor muscles found in the same organism. B) They utilize completely different muscle proteins. C) They have a very slow rate of cross-bridge cycling. D) They are able to contract rapidly while producing large amounts of force.