Describe the synaptic cleft
What will be an ideal response?
The synaptic cleft is the narrow gap of space between the axon terminal and the muscle fiber into which acetylcholine is released. The synaptic cleft is one of the three parts of the neuromuscular junction.
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Which of the following is secreted by the chief cells of the gastric mucosa?
A. Pepsin B. Gastrin C. Pepsinogen D. HCl E. Intrinsic factor
Pancreatic exocrine secretions:
a. include CCK and secretin b. include enzymes for carbohydrate, protein and fat digestion c. are acidic d. are regulated by gastrin and GIP e. include insulin
The function of Merkel cells in the skin is to:
a. Acquire and present antigens to lymphocytes b. Function as mechanoreceptors that respond to pressure c. React to heat via temperature-sensitive calcium channels d. Synthesize melanin e. Synthesize the bulk of keratin within the skin
Lymphoid hemopoiesis occurs mainly in the bone marrow
Indicate whether the statement is true or false