In which of the following activities do the biceps brachii function as antagonists?
A. straightening the elbow during a push-up
B. straightening the elbow during a pull-up
C. curling a barbell from the floor to waist height
D. both A and B
A. straightening the elbow during a push-up
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Which of the following is not true of melanin?
A) There is more than 1 type of melanin. B) Melanin is released by exocytosis. C) It is manufactured from tyrosine. D) It is packaged in vesicles called melanosomes. E) It absorbs UV radiation.
The area of the skin that provides sensory input to the CNS via one pair of spinal nerve is called
a) a dermatome. b) a microtome. c) perineurium. d) a fascicle. e) an epitome.
List the four necessary steps that are required for sensory reception.Different receptors are used to detect different stimuli: Briefly describe three examples of stimulus modality
What will be an ideal response?
What is the role of the lymphatic system in the metastasis of cancers?
A) The lymphatic system does not play a role in the prevention or promotion of cancer metastasis. B) Cells from established tumors enter lymphatic vessels. Eventually, secondary tumors develop in other parts of the body. C) Cells from established tumors enter lymphatic vessels and are degraded in lymphoid nodules. This prevents the development of tumors in other parts of the body. D) Cells from established tumors enter lymphatic vessels and are destroyed by lymphocytes in the lymph nodes. This action prevents the development of tumors in other parts of the body.