Superfiscial Muscles Flashcards
(37 cards)
Levator Nasolabialis Origin
Frontal & Nasal Bones
Levator Nasolbialis Insert
Lips/Nostrils
Levator Nasolabialis Action
Lift the nostril
Levator Nasolabialis Nerve
Facial Nerve (CN 7) zygomatic & buccal branches
Masseter origin
Zygomatic arch & maxilla
Masseter Insert
Mandible
Masseter Action
Closes the jaw at the TMJ
Masseter Nerve
Trigeminal Nerve (CN 5)
Sternomandibularis Origin
Manubrium (chest)
Sternomandibularis Insert
Mandible
Sternomandibuaris Action (1) (1)
- Opens the mouth
- Unilaterally flexes the head to the side of the muscle
Sternomandibularis Nerve
Accessory Nerve (CN 11)
Brachiocephalicus Origin (3)
-Temporal bone
- nuchal crest
- C1-4
Brachiocephalicus Insert
Humerus
Brachiocephalicus Action (2) (1)
- Advance the forearm
- Extend the shoulder
- Unilaterally flexes the neck
Brachiocephalicus Nerve (2)
- Cranial to the shoulder - accessory nerve (CN 11)
- Caudal to the shoulder - axillary nerve
Omotransversarius Origin
C2-C4
Omotransversarius Insert (2)
- Humerus
- Shoulder fascia
Omotransversarius Action (1) (1)
- Brings the limb forward
- Unilaterally it laterally flexes the neck
Omotransversarius Nerve
Accessory Nerve (CN 11)
Splenius Origin
T3-T5
Splenius Insert (3)
- Nuchal Ligament
- Temporal Bone
- C2-C5
Splenius Action (2) (1)
- Elevates Head
- Extends neck
- Unilaterally it laterally bends the neck
Splenius Nerve
Dorsal branch of cervical nerves