The arachnoid villi lack the tunica media found in blood vessels.
Answer the following statement true (T) or false (F)
True
Rationale: See the subsection “Dural Sinuses” in the section “Ventricles.”
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Which region of the spinal cord carries nerve impulses for proprioception?
a) Posterior white column b) Anterior gray horn c) Anterior white column d) Lateral white column e) Dermatome tract
List in order the organs through which food and other substances pass in their journey into, through, and out the digestive tract
What will be an ideal response?
What is the function of the cruciate ligaments in the knee joint?
A. Limit the movement of the femur on the tibia B. Hold the patella in place on the tibia C. Limit the movement of the fibula on the femur D. Limit the movement of the fibula on the tibia E. Hold the patella in place on the femur
Which best describes a "myofibril"?
A. It is a single skeletal-muscle cell. B. It is a cylindrical cellular organelle composed of myofilaments. C. It is a hollow membranous structure that stores calcium. D. It is composed of a single type of protein and forms cross-bridges. E. It is a fibrous junction between a muscle cell and a tendon.