Answer the following statements true (T) or false (F)
1. Regardless of type, all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage.
2. Movements of the thigh are accomplished by muscles anchored to the pelvic girdle.
3. The biceps brachii inserts on the radius.
4. The chewing muscle covering the ramus of the mandible is the buccinator.
5.The deltoid is a prime mover of the arm that acts in adduction.
1. TRUE
2. TRUE
3. TRUE
4. FALSE
5. FALSE
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Action potentials are "all or none."
Answer the following statement true (T) or false (F)
In order for an action potential to occur, a certain membrane potential called the ________ must be reached.
A. depolarization B. sodium-potassium pump C. threshold D. hyperpolarization
What results from damage to annulus fibrosus and release of nucleus pulposus?
A. Lordosis B. Kyphosis C. Spina bifida D. Herniated disk E. Scoliosis
Transplanted tissues and organs that contain _________ _________ are rejected by the body
A. self-antigens B. foreign antigens C. foreign antibodies D. self-antibodies E. plasma proteins