TTU ZOOL 2403 EXAM 2 2026
EXAMINATION TEST SOLVED
QUESTIONS WITH FULL SOLUTION
GRADED A+
◉ Abduction and adduction depend on.... Answer: Whether a muscle is
superior or inferior to a joint
Ex. Deltoid is superior to shoulder so it abducts the shoulder joint
◉ 7 muscles of facial expression. Answer: Orbicularis oris: pucker lips
Obicularis oculi: close eyes
Frontalis: raise eyebrows
Levator labii superioris: raise upper lips
Depressor labii inferioris: lower lower lips
Zygomaticus: smile
Buccinator: compress cheeks
◉ What are the muscles of mastication?. Answer: masseter
temporalis
-both elevate mandible
◉ muscles that cross the SC Joint move the.... Answer: shoulder
◉ muscles that cross the shoulder Joint move the.... Answer: arm
,◉ muscles that cross the elbow Joint move the.... Answer: forearm
◉ muscles that cross the wrist Joints move the.... Answer: hand
◉ muscles that cross the digit Joints move the.... Answer: fingers
◉ muscles never. Answer: Push only pull
◉ anterior muscles except for the knee down are.... Answer: flexors and
medial rotators
◉ posterior muscles except for the knee down are.... Answer: extensors
and lateral rotators
◉ Axial is __% and appendicular is __%. Answer: 60% and 40% (but
appendicular is heavier bc a bitch is hefty)
◉ frontalis muscle action. Answer: raises eyebrows
◉ orbicularis oculi action. Answer: closes eye
◉ levator labii superioris action. Answer: raises upper lip
,◉ zygomaticus action. Answer: smiling
◉ orbicularis oris action. Answer: puckers lips
◉ buccinator action. Answer: tightens cheeks
◉ depressor labii inferioris action. Answer: lowers lip
◉ muscles of mastication and where they cross. Answer: temporalis
masseter
TMJ (tempomandibular joint)
(the temporal contracts and opens the mandible)
◉ Muscles of the tongue. Answer: Basically anything that says glossus
Ex: genioglossus, styloglossus, hyoglossus
◉ muscles of larynx and pharynx. Answer: elevate larynx; depresses
pharynx
◉ extrinsic muscles. Answer: move the eyeball (rectus' and obliques)
◉ muscles of anterior neck. Answer: supra hyoid
infra hyoid
, Sternocleidomastoid
◉ suprahyoid muscles. Answer: elevate hyoid bone
depress mandible
◉ infrahyoid muscles. Answer: depress hyoid bone
elevate larynx and pharynx
◉ The Sternocleidomastoid creates what type of movement. Answer:
Head/neck rotator
Flexor/lateral flexor
◉ posterior neck muscles function as. Answer: head/neck EXTENSORS
◉ vertebral column muscles function as. Answer: trunk extensors
(they are the overworked muscle group)
◉ Anterior body wall muscles. Answer: -diaphragm (breath)
-2 intercostals (dist. b/t ribs)
-2 obliques (rot8 trunk)
-transverse abdominis (flattens abs)
-rectus abdominis (flex trunk)
*strengthening these protects groin and back
EXAMINATION TEST SOLVED
QUESTIONS WITH FULL SOLUTION
GRADED A+
◉ Abduction and adduction depend on.... Answer: Whether a muscle is
superior or inferior to a joint
Ex. Deltoid is superior to shoulder so it abducts the shoulder joint
◉ 7 muscles of facial expression. Answer: Orbicularis oris: pucker lips
Obicularis oculi: close eyes
Frontalis: raise eyebrows
Levator labii superioris: raise upper lips
Depressor labii inferioris: lower lower lips
Zygomaticus: smile
Buccinator: compress cheeks
◉ What are the muscles of mastication?. Answer: masseter
temporalis
-both elevate mandible
◉ muscles that cross the SC Joint move the.... Answer: shoulder
◉ muscles that cross the shoulder Joint move the.... Answer: arm
,◉ muscles that cross the elbow Joint move the.... Answer: forearm
◉ muscles that cross the wrist Joints move the.... Answer: hand
◉ muscles that cross the digit Joints move the.... Answer: fingers
◉ muscles never. Answer: Push only pull
◉ anterior muscles except for the knee down are.... Answer: flexors and
medial rotators
◉ posterior muscles except for the knee down are.... Answer: extensors
and lateral rotators
◉ Axial is __% and appendicular is __%. Answer: 60% and 40% (but
appendicular is heavier bc a bitch is hefty)
◉ frontalis muscle action. Answer: raises eyebrows
◉ orbicularis oculi action. Answer: closes eye
◉ levator labii superioris action. Answer: raises upper lip
,◉ zygomaticus action. Answer: smiling
◉ orbicularis oris action. Answer: puckers lips
◉ buccinator action. Answer: tightens cheeks
◉ depressor labii inferioris action. Answer: lowers lip
◉ muscles of mastication and where they cross. Answer: temporalis
masseter
TMJ (tempomandibular joint)
(the temporal contracts and opens the mandible)
◉ Muscles of the tongue. Answer: Basically anything that says glossus
Ex: genioglossus, styloglossus, hyoglossus
◉ muscles of larynx and pharynx. Answer: elevate larynx; depresses
pharynx
◉ extrinsic muscles. Answer: move the eyeball (rectus' and obliques)
◉ muscles of anterior neck. Answer: supra hyoid
infra hyoid
, Sternocleidomastoid
◉ suprahyoid muscles. Answer: elevate hyoid bone
depress mandible
◉ infrahyoid muscles. Answer: depress hyoid bone
elevate larynx and pharynx
◉ The Sternocleidomastoid creates what type of movement. Answer:
Head/neck rotator
Flexor/lateral flexor
◉ posterior neck muscles function as. Answer: head/neck EXTENSORS
◉ vertebral column muscles function as. Answer: trunk extensors
(they are the overworked muscle group)
◉ Anterior body wall muscles. Answer: -diaphragm (breath)
-2 intercostals (dist. b/t ribs)
-2 obliques (rot8 trunk)
-transverse abdominis (flattens abs)
-rectus abdominis (flex trunk)
*strengthening these protects groin and back
