Answer the following questions true (T) or false (F)
1. The posterior (dorsal) root of a spinal nerve and the posterior ramus are considered mixed nerves since they both carry sensory and motor information.
2. The lumbar nerve plexuses arise from the anterior rami of L1 - L4 and innervate structures of the pelvis and lower limb.
3. Proprioceptors are located in the musculoskeletal system where they detect the movement and position of a joint or body part.
1. FALSE
2. TRUE
3. TRUE
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What joint serves as the fulcrum when triceps brachii moves the forearm?
A) shoulder joint B) wrist joint C) elbow joint D) metacarpals joint
A water-soluble hormone binds to its receptor on the plasma membrane. Arrange the events that follow in correct sequence.(1) Alpha subunit-GTP complex alters cell activity(2) GTP binds to the alpha subunit replacing GDP(3) G-protein subunits separate from the receptor(4) Alpha subunit separates from other two subunits(5) G-protein subunits bind to the receptor
A. 5, 4, 2, 1, 3 B. 4, 2, 1, 3, 5 C. 5, 2, 3, 4, 1 D. 5, 2, 1, 4, 3 E. 3, 4, 1, 2, 5
Explain how the central nervous system and peripheral nervous system differ structurally
What will be an ideal response?
In familial hypercholesterolemia, individuals with two abnormal alleles die of heart attacks in childhood, those with only one abnormal allele typically die as young adults, and those with two normal alleles have normal life expectancies
This exemplifies ________. A) complete dominance B) penetrance C) incomplete dominance D) codominance E) pleiotropy