Muscles Midterm Flashcards
What is the O, I and N of the Sternohyoid muscle?
O: Manubrium
I: Hyoid bone
N: Ansa Cervicalis (C1-C3)
(10)
What is the O, I and N of the Sternohthyroid muscle?
O: Manubrium
I: Thyroid cartilage
N: Ansa Cervicalis (C1-C3)
What is the O, I and N of the Omohyoid muscle?
Inferior Belly; O: Scapula I: Tendinous “sling” on clavicle
Superior Belly; O: “sling” on clavicle I: Hyoid bone
Innervation for both = Ansa Cervicalis (C1-C3)
(10)
What is the O, I and N of the Thyrohyoid muscle?
O: Thyroid cartilage
I: Greater Cornu of hyoid bone
N: C1 (hitch-hike w/ XII)
What is the O, I and N of the Digastric muscle?
Ant. belly; O: mandible I: Intermediate tendon held by tendinous sling to hyoid N: V n.
Post. belly; O: Mastoid process I: (same) N: VII n.
What is the O, I and N of the Stylohyoid muscle?
O: Styloid process
I: Hyoid bone
N: VII n.
What is the O, I and N of the Mylohyoid muscle?
O: Mandible
I: Median raphe and hyoid
N: V n.
What is the O, I and N of the Geniohyoid muscle?
O: Mandible
I: Hyoid
N: C1 (via XII)
What is the O, I and N of the Anterior Scalene muscle?
O: Ant. tubercles of TP’s
I: First rib (anteriorly)
N: Lover cervical ventral rami
What is the O, I and N of the Middle Sclane muscle?
O: TP’s
I: First rib (laterally)
N: Lower cervical ventral ramii
What is the O, I and N of the Posterior Scalene muscle?
O: TP’s
I: Second rib (laterally)
N: Lower cervical ventral rami
What is the O, I and N of the Scalenous minimis muscle?
O: TP of C6 or C7
I: First rib
N: Lower cervical ventral rami
What is the O, I and N of the Longus Colli muscle?
O: TP’s and bodies
I: TP’s and bodies
N: C2-C7 ventral rami
What is the O, I and N of the Longus Capitis muscle?
O: TP’s C3-C6
I: Occiput
N: C1-C3 ventral rami
What is the O, I and N of the Rectus Capitus Anterior muscle?
O: TP of C1 and Lateral mass C1
I: Occiput
N: C1-C2
What is the O, I and N of the Rectus Capitis Lateralis muscle?
O: TP C1
I: Occiput
N: C1-C2 ventral rami
What are all the superficial muscles of the face innervated by?
Facial nerve VII
Which muscles elevate and wrinkle skin of forehead and elevate eyebrows?
Epicranius muscles
1) Frontalis
2) Occipitalis
(24)
Which muscles is considered the blink muscle?
Orbicularis Oculi
Which muscle is responsible for pursing the lips?
Orbicularis Oris
24
Which muscle is responsible for retracting the angle of the mouth? (smile muscle)
Risorius
24
Which muscle is responsible for elevating the angle of the mouth?
Zygomaticus major
24
Which muscle is responsible for elevating the upper lip?
Zygomaticus Minor
24
Which muscle is responsible for depressing the angle of the mouth?
Depressor Anguli Oris
25
Which muscle is responsible for depressing the lower lip?
Depressor Labii Oris
Which muscle is responsible for compressing cheek against teeth and gums?
Buccinator
25
Which muscle is responsible for depressing the lower lip along midline? (pouting muscle)
Mentalis muscle
25
