Sympathetic fibers originate from ____________________ and ____________________ spinal nerves

Fill in the blank(s) with correct word


thoracic, lumbar

Anatomy & Physiology

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If a lever has a fulcrum at one end, a tendon exerting force 5 cm distal to the fulcrum, and resistance at the end opposite to the fulcrum, which of the following is true?

A. It is a first-class lever. B. The mechanical advantage is higher than 1.0. C. It is a third-class lever. D. This joint would use "low-gear" muscles. E. The point of effort will move farther than the point of resistance.

Anatomy & Physiology

When compared to the shoulder, the hip joint has

A. a deeper bony socket and stronger supporting ligaments. B. a shallower bony socket but stronger supporting ligaments. C. a shallower bony socket and weaker supporting ligaments. D. a deeper bony socket but weaker supporting ligaments.

Anatomy & Physiology

A receptor cell

a. is involved in converting stimulus energy into action potentials. b. is specialized to respond to a particular sensory modality. c. can often be found in a sense organ grouped with other cells responsive to the same adequate stimulus. d. all of these. e. none of these.

Anatomy & Physiology

The reticular formation is an area of the brain that

A.  is sensory in function. B.  is motor in function. C.  has sensory and motor components. D.   serves higher-order cognitive functions.

Anatomy & Physiology