The muscle that originates on the sacrum and transverse process of each vertebra
ID: 96027 • Letter: T
Question
The muscle that originates on the sacrum and transverse process of each vertebra and inserts on the spinous process of the third or fourth more superior vertebra is the _______ muscle. A) quadratus lumborum B) interspinalis C) semispinalis D) multifidus E) rotatores The intermediate layer of the intrinsic back muscles is also called the ______ group. A) erector spinae B) spinal flexor C) intertransversarii D) rotators E) interspinalis The ___________ muscle is divided longitudinally by a median collagenous partition called the linea alba. A) rectus abdominis B) internal oblique C) transversus abdominis D) diaphragm E) external oblique Flexion of the spinal column and depression of the ribs are actions accomplished by the ________ group of muscles in the abdominal wall. A) inferior serratus posterior B) diaphragm C) rectus abdominis D) internal intercostals E) transversus abdominis The anterior, middle, and posterior scalene muscles are the oblique muscles of the neck, which ___________. A) elevate the ribs and/or flex the neck B) depress the ribs and flex the neck C) elevate the ribs and enlarge the thoracic cavity D) depress the ribs and flex the vertebral column E) elevate the ribs and oppose the diaphragm The _________ muscle ejects urine or semen in the male. A) deep transverse perineal B) superficial transverse perineal C) ischiocavernosus D) external urethral sphineter E) bulbospongiosus A muscle of the scalp, with two bellies separated by a collagenous shhet, is called occipitofrontalis. A muscle that constricts the opening of the mouth is orbicularis oculi. In infants, a muscle, which is responsible for producing the suction required for suckling at the breast, is the buccinator. A superficial muscle that covers the anterior surface of the neck is trapezius. The muscle that elevates, everts, and protrudes the lower lip in the mentalis. The risorius is a muscle of mastication.Explanation / Answer
Answer:
40. (D) Multifidus
Explanation:
They are a series of muscles that run along the length of the spine and are important components in maintaining stability and posture.
41. (A) Erector spinae
Explanation:
The intermediate layer include the erector spinae muscles and are important for maintaining posture and extending the spine. They are divided into 3 main groups which include Iliocostalis, longissimus and spinalis.
42. (A) rectus abdominis
Explanation:
They begin at the xiphoid process and ends near pubic symphysisis and are an important muscle group for the stabilization of the trunk.
43. (C) rectus abdominis
Explanation:
The abdominal wall includes the rectus abdominis muscles and its action allows depression of ribs, flexion of vertebral column, and compression of abdomen.
(Since there are multiple questions, the first 4 questions have been answered according to the rules of Chegg)