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studystack midterm
assignment 1 - physio
Question | Answer |
---|---|
Physiological muscle fatigue may be caused by: | a relative lack of ATP. high levels of lactate. failure of the sodium-potassium pumps. |
The knee joint is an example of a _____ joint. | hinge |
The energy required for muscular contraction is obtained by hydrolysis of | ATP. |
The contractile unit of a muscle cell is the | sarcomere |
Excitatory neurotransmitters are most likely to: | initiate an action potential. |
Serotonin is an example of a(n): | amine neurotransmitter. |
Blood calcium levels involve secretion of which two hormones? | parathyroid and calcitonin |
The humerus articulates proximally with the | scapula. |
Which cells form the blood-brain barrier that protects the brain from harmful substances in the blood? | Astrocytes |
Connective tissue forms from stem cell tissue called: | mesenchyme |