Bio 115 Head And Neck Test 2 Cnih 2 Exam with Approved
Questions and Answers
How many cervical muscles are there? - ✔✔2`
What are the cervical muscles? - ✔✔sternocleidomastoid and trapezius
What is the first cervical muscle? - ✔✔sternocleidomastoid
What is the action for the sternocleidomastoid? - ✔✔bends and rotates head and neck.
flexes neck.
What is ipsilateral? - ✔✔same side
What is contra-lateral - ✔✔not the same side.
what is a bilateral contract flex head? - ✔✔extending it forward
what is unilateral contact - ✔✔bends head to the ipsilateral side.
What is the 2nd cervical muscle - ✔✔trapezius
What does the trapezius muscle do? - ✔✔helps shrugging of shoulders
What is the action of the trapezius? - ✔✔Shrugs shoulders
What does Origin mean? - ✔✔end of muscle attached to LEAST moveable structure
What does Insertion mean? - ✔✔end of muscle attached to MORE moveable structure
what does muscle mean? - ✔✔body tissue that shortens under neural control, causing
soft tissue and bony structures to move.
What does action mean? - ✔✔Movement accomplished by a muscle when muscle
fibers contract.
What is facial paralysis? - ✔✔loss of the action of facial muscles.
What is muscular system? - ✔✔system that includes skeletal muscle tissue.
How many muscles of facial expression are there? - ✔✔15
What is the action of the epicranial muscle? - ✔✔Surprise look
What is the action of the orbicularis oculi muscle? - ✔✔closing eyelid and squinting.
circles the eye. allows to closes eyes tightly.
, What is the action of the corrugator supercilii muscle? - ✔✔frowning.
What is the action of the orbicularis oris muscle? - ✔✔closing and pursing lips as well
as pouting and grimacing. goes around lips. pucker lips , drink from a straw. etc.
What is the action of the buccinator muscle? - ✔✔compresses the cheeks during
chewing.
What is the action of the risorius muscle? - ✔✔stretching lips
What is the action of the levator labii superioris muscle? - ✔✔Raising upper lip.
smiling/smirk.
What is the action of the levator labii superioris alaeque nasii muscle? - ✔✔raising
upper lip and dilating nares with sneer. Moving nose up.
What is the action of the zygomaticus major muscle? - ✔✔smiling. (if cut...cannot smile)
What is the action of the zygomaticus minor muscle? - ✔✔Raising upper lip to assist in
smiling. (if cut.... can still smile)
What is the action of the levator anguli oris muscle? - ✔✔smiling. corner of lips- moving
up.
What is the action of the depressor anguli oris? - ✔✔frowning. Corner of lips- moving
down.
What is the action of the depressor labii inferioris? - ✔✔Lowering lower lip. Frown.
What is the action of the mentalis? - ✔✔Raising chin and protruding lower lip. -for a
"hmmm" thinking role. Supports a complete lower denture.
What is the action of the platysma? - ✔✔raising neck skin and grimacing. Muscle
contributes to the disgusted look.
What does the frontal belly do? - ✔✔wrinkles formed. bnotox goes here. there is
another part of the muscle thats at the back called occipital belly.
How many muscles of mastication are there? - ✔✔4
how many heads does the Masseter muscle have? - ✔✔2 heads. one deep head and
one superficial head.
Questions and Answers
How many cervical muscles are there? - ✔✔2`
What are the cervical muscles? - ✔✔sternocleidomastoid and trapezius
What is the first cervical muscle? - ✔✔sternocleidomastoid
What is the action for the sternocleidomastoid? - ✔✔bends and rotates head and neck.
flexes neck.
What is ipsilateral? - ✔✔same side
What is contra-lateral - ✔✔not the same side.
what is a bilateral contract flex head? - ✔✔extending it forward
what is unilateral contact - ✔✔bends head to the ipsilateral side.
What is the 2nd cervical muscle - ✔✔trapezius
What does the trapezius muscle do? - ✔✔helps shrugging of shoulders
What is the action of the trapezius? - ✔✔Shrugs shoulders
What does Origin mean? - ✔✔end of muscle attached to LEAST moveable structure
What does Insertion mean? - ✔✔end of muscle attached to MORE moveable structure
what does muscle mean? - ✔✔body tissue that shortens under neural control, causing
soft tissue and bony structures to move.
What does action mean? - ✔✔Movement accomplished by a muscle when muscle
fibers contract.
What is facial paralysis? - ✔✔loss of the action of facial muscles.
What is muscular system? - ✔✔system that includes skeletal muscle tissue.
How many muscles of facial expression are there? - ✔✔15
What is the action of the epicranial muscle? - ✔✔Surprise look
What is the action of the orbicularis oculi muscle? - ✔✔closing eyelid and squinting.
circles the eye. allows to closes eyes tightly.
, What is the action of the corrugator supercilii muscle? - ✔✔frowning.
What is the action of the orbicularis oris muscle? - ✔✔closing and pursing lips as well
as pouting and grimacing. goes around lips. pucker lips , drink from a straw. etc.
What is the action of the buccinator muscle? - ✔✔compresses the cheeks during
chewing.
What is the action of the risorius muscle? - ✔✔stretching lips
What is the action of the levator labii superioris muscle? - ✔✔Raising upper lip.
smiling/smirk.
What is the action of the levator labii superioris alaeque nasii muscle? - ✔✔raising
upper lip and dilating nares with sneer. Moving nose up.
What is the action of the zygomaticus major muscle? - ✔✔smiling. (if cut...cannot smile)
What is the action of the zygomaticus minor muscle? - ✔✔Raising upper lip to assist in
smiling. (if cut.... can still smile)
What is the action of the levator anguli oris muscle? - ✔✔smiling. corner of lips- moving
up.
What is the action of the depressor anguli oris? - ✔✔frowning. Corner of lips- moving
down.
What is the action of the depressor labii inferioris? - ✔✔Lowering lower lip. Frown.
What is the action of the mentalis? - ✔✔Raising chin and protruding lower lip. -for a
"hmmm" thinking role. Supports a complete lower denture.
What is the action of the platysma? - ✔✔raising neck skin and grimacing. Muscle
contributes to the disgusted look.
What does the frontal belly do? - ✔✔wrinkles formed. bnotox goes here. there is
another part of the muscle thats at the back called occipital belly.
How many muscles of mastication are there? - ✔✔4
how many heads does the Masseter muscle have? - ✔✔2 heads. one deep head and
one superficial head.
