NCBTMB Applied Science and Anatomy 5

Question 1

Which directional term means 'closer to the point of attachment' of a limb?

Accepted Answer

Proximal

Answer

Proximal refers to a position closer to the origin or point of attachment, such as the knee being proximal to the ankle.

Question 2

What is the primary function of red bone marrow?

Accepted Answer

Produce blood cells (hematopoiesis)

Answer

Red bone marrow is the site of hematopoiesis, producing red blood cells, white blood cells, and platelets.

Question 3

Hypertonia in a muscle most accurately refers to which condition?

Accepted Answer

Abnormally increased muscle tone or tension

Answer

Hypertonia describes a state of excessive muscle tension or stiffness, often resulting from upper motor neuron lesions or chronic protective guarding.

Question 4

Which carpal bone is most commonly fractured and may have its blood supply disrupted, leading to avascular necrosis?

Accepted Answer

Scaphoid

Answer

The scaphoid is the most frequently fractured carpal bone and is prone to avascular necrosis because its blood supply enters distally.

Question 5

Which muscle is the primary hip flexor and originates from the lumbar vertebrae?

Accepted Answer

Psoas major

Answer

The psoas major originates from the bodies and transverse processes of lumbar vertebrae L1–L5 and is the strongest hip flexor.

NCBTMB Exam Practice Test

NCBTMB Exam Practice Test

NCBTMB Applied Science and Anatomy 5