ANATOMY

GENERAL ANATOMY

MUSCLE ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a muscle’s name includes the term “oblique” it means:
A
Its fibers run parallel to the midline
B
Its fibers run perpendicular to the midline
C
It does not allow light to pass through it
D
Its fibers run on a slant
Explanation: 

Detailed explanation-1: -The word ‘oblique’ means ‘diagonal’ or ‘slanted’, which is a reference to the slanted direction that the muscle fibers of this muscle run up the sides of the body. The internal oblique is a diagonal muscle located at each side of the body.

Detailed explanation-2: -The obliques are the muscles that are known as the waist muscles. The oblique muscles connect the ribs, top of the hip bone, fascia of the abdominals and lower back. Oblique muscles control bending physical activities such as bending over, twisting the torso, side bending and they also assist with breathing.

Detailed explanation-3: -Answer and Explanation: External oblique muscle fibers run diagonally on the side of the abdomen. They move medially and inferiorly from their origin to their insertion points. An example of their fiber direction is they run in the same direction as your arms when you put your hands in your pockets.

Detailed explanation-4: -Answer and Explanation: The type of muscles in which the fascicles are at an oblique angle to the tendon and the muscle fibers resemble a large feather is called option (d) pennate. Examples of pennate muscles are the extensor digitorium communis or the lumbricals.

Detailed explanation-5: -Direction of fibers: rectus (straight); transverse (across); oblique (diagonally); orbicularis (circular).

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