Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Head and Neck Muscles: Anatomy and Function, Lecture notes of Anatomy

layer of fibrous tissue that surrounds muscles, groups of muscles, blood vessels and nerves, binding those structures together ... Muscles of the Head ...

Typology: Lecture notes

2021/2022

Uploaded on 09/12/2022

johnatan
johnatan 🇺🇸

4

(29)

280 documents

1 / 11

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Name Section Biology 1205: Laboratory
Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)
MUSCLES OF THE HEAD AND NECK
Muscle
Location
Origin
Insertion
Action
A
FRONTALIS
Covers forehead
cranial aponeurosis
Skin of eyebrows and root of
nose
Raises eyebrows
B
ORBICULARIS OCULI
Surrounds orbit
Frontal and maxillae; eyelid
ligaments
Eyelid tissue
Closes, blinks and squints
eye
C
TEMPORALIS
Covers temporalis
Temporal
Mandible
Closes jaw
D
ZYGOMATICUS
Extends diagonally from
mouth to cheekbone
Zygomatic
Skin and muscle at corner of
mouth
Raises corners of mouth
E
MASSETER
Covers lateral jawbone
Zygomatic arch
Mandible
Closes jaw
F
ORBICULARIS ORIS
Surrounds mouth; forms
lips
Maxillae & mandible
Muscle & skin at angles of
mouth
Closes mouth; purses lips
G
STERNOCLEIDOMASTOID
Anterolateral neck deep to
platysma
Sternum & clavicle
Temporal
Together flex head; alone
turn head
__
PLATYSMA
Superficial neck
Chest fascia
Mandible; skin & muscle
around mouth
Depresses mandible; sags
mouth
C
A
B
D
F
GE
pf3
pf4
pf5
pf8
pf9
pfa

Partial preview of the text

Download Head and Neck Muscles: Anatomy and Function and more Lecture notes Anatomy in PDF only on Docsity!

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

MUSCLES OF THE HEAD AND NECK

Muscle Location Origin Insertion Action

A

FRONTALIS

Covers forehead cranial aponeurosis Skin of eyebrows and root of

nose

Raises eyebrows

B

ORBICULARIS OCULI

Surrounds orbit Frontal and maxillae; eyelid

ligaments

Eyelid tissue Closes, blinks and squints

eye

C

TEMPORALIS

Covers temporalis Temporal Mandible Closes jaw

D

ZYGOMATICUS

Extends diagonally from

mouth to cheekbone

Zygomatic Skin and muscle at corner of

mouth

Raises corners of mouth

E

MASSETER

Covers lateral jawbone Zygomatic arch Mandible Closes jaw

F

ORBICULARIS ORIS

Surrounds mouth; forms

lips

Maxillae & mandible Muscle & skin at angles of

mouth

Closes mouth; purses lips

G

STERNOCLEIDOMASTOID

Anterolateral neck deep to

platysma

Sternum & clavicle Temporal Together flex head; alone

turn head

__

PLATYSMA

Superficial neck Chest fascia Mandible; skin & muscle

around mouth

Depresses mandible; sags

mouth

C

A

B

D

F

G

E

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

Muscle Location Origin Insertion Action

K BICEPS BRACHII anterior arm; has two heads

short head - coracoid

process of scapula;

long head - capsule of joint

proximal/medial radius

(radial tuberosity) flexes forearm at elbow;

supinates forearm

L BRACHIALIS deep to muscle K distal anterior humerus

proximal anterior ulna

(coronoid process)

flexes forearm at elbow

M TRICEPS BRACHII posterior arm; has three

heads

long head - inferior margin of

glenoid fossa

lateral and medial heads -

posterior humerus

proximal posterior ulna

(olecranon process)

extends forearm at elbow

N PRONATOR TERES

anterior elbow and proximal

forearm

distal medial humerus (medial

epicondyle) and coronoid

process of ulna

middle of radius pronates and flexes forearm

O FLEXOR CARPI RADIALIS anterior forearm

distal medial humerus (medial

epicondyle)

base of metacarpals II and III flexes wrist and abducts

hand

P PALMARIS LONGUS anterior forearm; medial to

muscle O

distal medial humerus (medial

epicondyle)

palmar aponeurosis flexes wrist

Q FLEXOR CARPI ULNARIS

anterior forearm; medial to

muscle P

distal medial humerus (medial

epicondyle) and olecranon

process of ulna

base of metacarpal V flexes wrist and adducts

hand

R FLEXOR DIGITORUM

SUPERFICIALIS

anterior forearm; deep to

muscles O, P, and Q

distal medial humerus (medial

epicondyle), medial ulna,

anterior radius

middle phalanges of digits II

to V flexes wrist and fingers

S EXTENSOR CARPI

RADIALIS LONGUS

lateral forearm lateral distal humerus base of metacarpal II extends and abducts wrist

T EXTENSOR CARPI

RADIALIS BREVIS

posterior forearm; posterior

to muscle S

lateral distal humerus

(lateral epicondyle) base of metacarpal III extends and abducts wrist

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

MUSCLES OF

THE LOWER

EXTREMITIES

(SEE

FIGURES)

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

Muscle Location Origin Insertion Action

A

GLUTEUS MAXIMUS

buttocks region; largest and

most superficial

dorsal ilium, sacrum, and

coccyx

posterior/proxi-mal femur

and facia lata

extends hip; laterally rotates

thigh

B

GLUTEUS MEDIUS

deep to the gluteus

maximus lateral ilium

PROXIMAL/LATERAL femur

(greater trochanter)

abducts and medially

rotates thigh

GLUTEUS MINIMUS

deepest gluteal muscle ilium PROXIMAL/LATERAL femur

(greater trochanter)

abducts and medially

rotates thigh

C

ILIOPSOAS

anterior/proximal thigh iliac fossa and vertebrae T 12

and L 1

- L

PROXIMAL/MEDIAL femur

(lesser trochanter) flexes hip

D

SARTORIUS

runs obliquely across

anterior thigh from hip to

knee

anterior/superior iliac spine medial/proximal tibia flexes and laterally rotates

thigh;

flexes knee

E

TENSOR FASCIA LATAE on lateral thigh

anterior iliac crest and

anterior/superior iliac spine fascia lata

flexes, abducts and medially

rotates thigh

F

BICEPS FEMORIS most lateral hamstring ischial tuberosity and distal

femur

head of fibula and lateral

condyle of tibia

extends thigh; laterally

rotates leg; flexes knee

G

SEMITENDINOSIS medial to muscle F ischial tuberosity medial upper tibia

extends and medially

rotates thigh; flexes knee;

H

SEMIMEMBRANOSUS deep to semitendinosis ischial tuberosity medial condyle of tibia

extends and medially

rotates thigh; flexes knee;

I

ADDUCTOR MAGNUS medial thigh ischial and pubic rami linea aspera of femur

adducts, laterally rotates,

and flexes thigh

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

Muscle Location Origin Insertion Action

J

ADDUCTOR LONGUS medial thigh medial pubis linea aspera of femur

adducts, laterally rotates,

and flexes thigh

ADDUCTOR BREVIS medial thigh body and inferior pubis linea aspera of femur

adducts, laterally rotates,

and flexes thigh

K

RECTUS FEMORIS

superficial muscle of

anterior thigh (quadriceps)

anterior/inferior iliac spine

and superior acetabulum tibial tuberosity

extends knee and flexes

thigh at hip

L

GRACILIS

superficial muscle of medial

thigh inferior and body of pubis medial head of tibia

adducts thigh; flexes and

medially rotates leg

M

VASTUS LATERALIS lateral/anterior thigh

PROXIMAL/LATERAL femur

(greater trochanter); linea

aspera

tibial tuberosity extends knee

N

VASTUS MEDIALIS medial/anterior thigh linea aspera tibial tuberosity extends knee

VASTUS INTERMEDIUS deep to recus femoris anterior and lateral femur tibial tuberosity extends knee

O

TIBIALIS ANTERIOR

superficial/anterio-lateral

leg; parallels tibial crest

lateral condyle and proximal

2/3 of tibia; interosseus

membrane

inferior surface of tarsal and

metatarsal dorsiflexion and inverts foot

P

EXTENSOR DIGITORUM

LONGUS

anterolateral leg; lateral to

muscle O

lateral condyle of tibia;

proximal 3/4 of fibula; inter-

osseus membrane

middle and distal phalanges

of toes toe extension; dorsiflexes

and everts foot

Q

FIBULARIS (PERONEUS)

LONGUS

superficial lateral muscle of

leg

head and proximal fibula under foot of metatarsal and

medial tarsal

plantar flexes and everts

foot

Worksheet 1: Gross Anatomy of the Muscular System (Exercise 15)

R

FIBULARIS (PERONEUS)

BREVIS

deep to fibularis (peroneus)

longus

distal fibula shaft

behind lateral maleolus to

prox-imal metatarsal V

plantar flexes and everts

foot

S

GASTROCNEMIUS superficial posterior leg

by two heads—medial and

lateral condyles of femur calcaneus

plantar flexes foot and flexes

knee

T

SOLEUS deep to gastrocnemius proximal tibia and fibula calcaneus plantar flexes foot