Answer the following statements true (T) or false (F)
1. Neurons in the CNS are organized into functional groups.
2. Strong stimuli cause the amplitude of action potentials generated to increase.
3. The oligodendrocytes can myelinate several axons.
4. Enkephalins and endorphins are peptides that act like morphine.
5. In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. TRUE
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This type of membrane lines a body cavity that does NOT open directly to the outside.
a. Cutaneous b. Serous c. Mucous d. Basement e. Connective.
The discipline known as _____________ anatomy examines similarities and differences across species
Fill in the blank with correct word.
Which digestive processes are missed by a patient who has a feeding tube placed in their stomach?
a) Patients with feeding tubes placed in their stomachs will not go through mechanical digestion in the stomach and the chemical digestion of carbohydrates and proteins. b) Patients with feeding tubes placed in their stomachs will not go through mastication and the initial chemical digestion of carbohydrates. c) Patients with feeding tubes placed in their stomachs will not go through the process of absorption in the small intestines since the tube provides all the nutrients necessary. d) Patients with feeding tubes placed in their stomachs will not go through mechanical or chemical digestion in the mouth or stomach and absorption in the small intestine will be minimal.
Contraction of smooth muscle requires:
A. myosin light-chain phosphorylation B. Ca++-dependent activation of calcineurin C. binding of Ca++ to troponin C D. an action potential in the smooth muscle cell E. inhibition of Rho kinase