Muscles Flashcards
What is the origin, insertion, and action of levator scapulae?
Origin: C1-C4
Insertion: Scapula
Action: Elevates the scapula
Origin
The anchor point that does not move.
Insertion
The body part that moves.
Action
The movement caused by the muscle contraction.
What is the white part of the eye called?
Optic Sclera
What is the origin, insertion, and action of triceps brachii?
Origin: Scapula
Insertion: Olecranon process of the ulna
Action: Flexes elbow
What is the origin, insertion, and action of the biceps brachii?
Origin: Scapula
Insertion: Radial tuberosity
Action: Flexes elbow
What muscles make up the quadriceps?
Rectus femoris, vastus lateralis, vastus intermedius, vastus medialis.
What is the origin, insertion, and action of rectis femoris?
Origin: Ilium
Insertion: Patella
Action: Extends knee
What is the origin, insertion, and action of vastus lateralis?
Origin: Greater trochanter of femur
Insertion: Patella
Action: extends knee
What is the origin, insertion, and action of vastus intermedius?
Origin: Femur
Insertion: Patella
Action: Extends Knee
What is the origin, insertion, and action of vastus medialis?
Origin: Intertrochantric line of femur
Insertion: Patella
Action: Extends Knee
What is the origin, insertion, and action of the mentalis?
Origin: Mandible
Insertion: Skin of chin
Action: Protrudes lower lip
What is the action of orbicularis oris?
Action: closes lips
What is the action of the orbicularis oculi?
Action: closes eye
What is the origin, insertion, and action of the superior rectus?
Origin: Fibrous ring
Insertion: Optic Sclera
Action: Eye up
What is the origin, insertion, and action of the inferior rectus?
Origin: Fibrous ring
Insertion: Optic Sclera
Action: Eye down
What is the origin, insertion, and action of medial rectus?
Origin: Fibrous ring
Insertion: Optic sclera
Action: Eye in
What is the origin, insertion, and action of the lateral rectus?
Origin: Fibrous ring
Insertion: Optic sclera
Action: Eye out
What is the origin, insertion, and action of the superior oblique?
Origin: Fibrous ring
Insertion: Optic sclera
Action: down and out
What is the origin, insertion, and action of the inferior oblique?
Origin: Maxilla
Insertion: Optic sclera
Action: up and out
What is the origin, insertion, and action of the sternohyoid?
Origin: Manubrium
Insertion: Hyoid
Action: Depresses hyoid
What is the origin, insertion, and action of the sternocleidomastoid?
Origin: Manubrium and clavicle
Insertion: Mastoid process
Action: Yes and no motions
What makes up the hamstrings?
Biceps femoris, semitendinosus, and semimembranosus.
Where is cerebrospinal fluid (csf) housed?
Lateral ventricles
What is superior colliculi responsible for?
Visual reflexes
What is inferior colliculi responsible for?
Auditory reflexes
