DAA-Lecture exam 2 extra credit Parker tri 1 Questions and Answers
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DAA-Lecture 2 extra credit Parker tri 1
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DAA-Lecture 2 Extra Credit Parker Tri 1
DAA-Lecture exam 2 extra credit Parker tri 1
•Extrinsic Back Muscles - - Answer- superficial
•involved with movement of the pectoral girdle and humerus at the shoulder joint
•Includes the trapezius and latissimus dorsi muscles•
•Intrinsic Back Muscles (superficial. intermediate, d...
DAA-Lecture exam 2 extra credit
Parker tri 1
•Extrinsic Back Muscles - - Answer- superficial
•involved with movement of the pectoral girdle and humerus at the shoulder joint
•Includes the trapezius and latissimus dorsi muscles•
•Intrinsic Back Muscles (superficial. intermediate, deep) - Answer- ***IMPORTANT
FOR MOVEMENT & POSTURE OF SPINAL COLUMN
Splenius m. (capitis and cervicis) - Superficial Intrinsic group
•Erector Spinae mm. - Intermediate intrinsic group
•Transversospinalis mm. - Deep Intrinsic Group
•Includes the semispinalis mm (capitis, cervicis, thoracis), multifidus mm, and
rotatores mm.
•Interspinal mm.
•Intertransversarii. mm
rectus abdominis m. - Answer- •Origin-pubic crest and symphysis pubis
•Insertion- xyphoid process and costal cartilages of ribs 5-7
•Action
Flexes vertebral column, increases abdominal pressure, maintenance of abdominal
wall tone required during straining
external oblique m. - Answer- •Origin- last 8 ribs
•Insertion- iliac crest and linea alba
•Action
•Contributes to the maintenance of abdominal tone, increasing intra-abdominal
pressure, and lateral flexion of the trunk against resistance.
internal oblique - Answer- •Origin- iliac crest, inguinal ligament, fascia of back
•Insertion- costal cartilages of last 3 ribs, linea alba
•Action
•Same as external abdominal oblique
Transversus abdominis m - Answer- •Origin- iliac crest, inguinal ligament, lumbar
fascia, and cartilages of last 6 ribs
•Insertion- xyphoid process, linea alba and pubis
•Action
•Contributes mainly to the maintenance of abdominal tone and increasing intra-
abdominal pressure.
iliacus muscle - Answer- O: iliac fossa
I: lesser trochanter of the femur
A: flex the thigh at the hip joint, laterally rotate the thigh at the hip joint
N: femoral n. (L2,3,4)
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