The center cavity of the diaphysis of a long bone is called the ________
A) nutrient foramen
B) epiphysis
C) canaliculus
D) marrow cavity
E) central canal
D
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When voltage -gated Na+ channels of a resting neuron open,
A) the neuron depolarizes. B) Na+ enters the neuron. C) Na+ enters the neuron and the neuron depolarizes. D) Na+ leaves the neuron. E) Na+ leaves the neuron and the neuron depolarizes.
Muscles that act on the knee joint form most of the mass of the __________.
A. thigh B. hip C. knee D. calf
Which of the following is NOT a function of macrophages?
A) Macrophages activate T lymphocytes (T cells). B) Macrophages secrete substances onto pathogens that are too large to ingest. C) Macrophages kill ingested pathogens with chemicals. D) Macrophages serve as antigen-presenting cells.
The fibrocartilage pad between the medial condyle of the femur and the medial condyle of the tibia is called the ________
A) infrapatellar bursa B) lateral meniscus C) posterior cruciate ligament (PCL) D) anterior cruciate ligament (ACL) E) medial meniscus