An Olympic sprinter readies for a race. After the sound of the starting gun, he propels himself forward from the starting block and immediately grimaces in pain, grabbing for the back of his thigh. Within 48 hours he begins noticing extensive bruising on the back of his thigh extending into the back of the knee. He now has difficulty rising from a seated position and flexing his knee. Bending at the waist generates more pain. Which muscle is likely injured?
A. Gluteus maximus
B. Popliteus
C. Biceps femoris
D. Gastrocnemius
E. Iliopsoas
C. Biceps femoris
Anatomy & Physiology
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__________ bone is always surrounded by __________.
A. Compact; cartilage B. Compact; spongy bone C. Spongy; compact bone D. A diaphysis; an epiphysis E. Spongy; a medullary cavity
Anatomy & Physiology
One way in which the body copes with increased stress is to increase the secretion of ________.
A. cortisol B. norepinephrine C. oxytocin D. prolactin
Anatomy & Physiology
The bladder is located in the ________ cavity.
A) abdominal B) thoracic C) pelvic D) mediastinal E) pleural
Anatomy & Physiology
The enteric nervous system controls:
a. the skeletal muscles b. the digestive system c. the cardiovascular system d. all endocrine glands e. the entire PNS
Anatomy & Physiology