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CCEB Part A - Anatomy -2 Questions and Answers Latest Updated
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CCEB Part A - Anatomy -2
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CCEB Part A - Anatomy [2]all erector spinae mm. and transvers spinalis mm. are innervated by - answer dorsal
rami
what mm. bilaterally, extend vertebrae and head; and unilaterally, laterally flex vertebral
column [3] - answer iliocostalis
longissimus
spinalis
what m. originates on the ligamentum nuchae at C7-T3 and inserts on the superior
borders of ribs 2-4
its' action is to elevate the ribs* - answer serratus posterior superior
what m. attaches/inserts on the inferior borders of ribs 8-12
its' action is to depress the ribs* - answerserratus posterior inferior
levator scap is innervated by - answerdorsal scapular n.
[C5]
this m. originates on the ligamentum nuchae at T1-T6 and inserts on the mastoid
process and lateral 3rd of nuchal line - answersplenius capitus
this m. bilaterally, extends head and neck; and unilaterally, flexes and rotates head/neck
to same side - answersplenius capitis
what m. laterally flexes neck, and elevates 2nd rib during forced inspiration -
answerposterior scalene
the anterior and middle scalenes originate from ___________________________ &
attach to the 1st rib - answerC4-6
SCM is innervated by - answerCN XI - accessory
[spinal accessory]
this m. laterally tilts, flexes, and rotates neck; and bilaterally, flexes neck so the chin is
thrusted forward - answerSCM
,what infrahyoid muscle is NOT innervated by ansa cervicalis* - answerthyrohyoid
what m. depresses hyoid & larynx
what m. depresses hyoid & elevates larynx - answersternothyroid
thyrohyoid
what are the 4 suprahyoid muscles*
an example question could be, which of the following does NOT depress the hyoid bone
[b/c suprahyoid mm. elevate hyoid bone] - answergeniohyoid
digastric
mylohyoid
stylohyoid
[GDMS]
what are the 4 infrahyoid muscles*
an example question could be, which of the following does NOT elevate the hyoid bone
[b/c infrahyoid mm. depress hyoid bone] - answerthyrohyoid
omohyoid
sternohyoid
sternothyroid
[TOSS]
diaphragm is innervated by - answerphrenic n.
[C3, 4, 5]
what intercostal mm. depresses the ribs - answerinternal intercostal mm.
what m. is innervated by thoracoabdominal & subcostal nn. - answerexternal oblique
what mm. are innervated by thoracoabdominal & lumbar nn. - answerinternal oblique &
transverse abdominus
, what mm. flex and rotate trunk, as well as support abdominal viscera - answerinternal &
external obliques
the QL originates where & what is it innervated by - answeriliolumbar ligament
T12-L4 nn.
what m. extends and laterally flexes vertebral column - answerQL
what m. resists increases in intra-abdominal pressure, as well as supports pelvic viscera
- answerlevator ani
what m. closes anal canal - answerexternal anal sphincter
branches of S4-5 nn. innervate what m. - answercoccygeus
what m. [in males] helps to expel urine and aids in getting an erection -
answerbulbospongiosus
what m. [in females] forms the vaginal sphincter, and aids in erection of clitoris -
answerbulbospongiosus
what m. helps to maintain erections in males, and helps to maintain erections of the
clitoris in females - answerischiocavernosus
what m. helps compress urethra, as well as the vagina [in females] - answerexternal
urethra sphincter
what mm. help support perineal body and viscera - answersuperficial & deep transverse
perineal mm.
bulbospongiosus, ischicavernosus, superficial & deep transverse perineal, and external
urethra sphincter mm. are all innervated by - answerpudendal n. and branches of
perineal nn.
latissimus dorsi inserts where & what is it innervated by - answerintertubercular groove
of humerus
[thoracodorsal n.]
what m. depresses the clavicle & what is it innervated by - answersubclavius
[subclavian n.]
teres major is innervated by
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