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Muscular Anatomy
Muscles of Neck
20
Anatomy
Undergraduate 1
04/09/2016

Additional Anatomy Flashcards

 


 

Cards

Term

 

 

Sternocleidomastoid

 

Origin

Definition

 

 

Manubrium of Sternum;

medial clavicle

Term

 

 

Sternocleidomastoid

 

Insertion

Definition

 

 

Mastoid process

Term

 

 

Sternocleidomastoid

 

Action

Definition

 

 

Bilaterally, flexion of neck.

Unilaterally, lateral flexion, 

rotation of head to opposite side.

Term

 

 

Sternocleidomastoid

 

Palpatation

Definition

 

 

Anterior-lateral neck, 

diagonally between its origin and insertion

Term

 

 

Sternocleidomastoid

 

Innervation

Definition

 

 

Accessory nerve

(or cranial nerve XI)

Term

 

 

Scalenus anterior (1), Medius (2) 

and Posterior (3)

 

Origin

Definition

 

 

Transverse processes of cervical vertebrae

Term

 

 

Scalenus anterior (1), Medius (2) 

and Posterior (3)

 

Insertion

Definition

 

 

First two ribs

(anterior and medius to first rib; posterior to second rib)

Term

 

 

Scalenus anterior (1), Medius (2) 

and Posterior (3)

 

Action

Definition

 

 

Bilaterally, raise first tow ribs during forced inspiration or assist neck flexion.  

 

Unilaterally, assist in lateral flexion to same side.

Term

 

 

Scalenus anterior (1), Medius (2) 

and Posterior (3)

 

Palpation

Definition

 

 

Cannot palpate.

Term

 

 

Scalenus anterior (1), Medius (2) 

and Posterior (3)

 

Innervation

Definition

 

 

Cranial nerve branches 6,7,8.

Term

 

 

Splenius capitis

 

Origin

Definition

 

 

Ligamentum nuchae; Lower cervical vertebra (C7).

 

Upper thoracic vertabrae (T1,2,3,4)

Term

 

 

Splenius capitis

 

Insertion

Definition

 

 

Mastoid process and occipital bone.

Term

 

 

Splenius capitis

 

Action

Definition

 

 

Bilaterally, extension of neck.

 

Unilaterally, rotation of head to same side (assists lateral flexion).

Term

 

 

Splenius capitis

 

Palpation

Definition

 

 

With difficulty, on posterior neck between trapezius and sternocleidomastoid above levator scapula.

Term

 

 

Splenius capitis

 

Innervation

Definition

 

 

Posterior branches of cervical nerve

Term

 

 

Splenius cervicis

 

Origin

Definition

 

 

Upper thoracic vertebrae (T3 to 6)

Term

 

 

Splenius cervicis

 

Insertion

Definition

 

 

Upper cervical vertebrae

(transverse processes of C1, 2, 3)

Term

 

 

Splenius cervicis

 

Action

Definition

 

 

Bilaterally, extension of neck.

 

Unilaterally, rotation of head to same side 

(assist lateral flexion).

Term

 

 

Splenius cervicis

 

Palpation

Definition

 

 

With difficulty, on posterior neck between trapezius and sternocleidomastoid above levator scapula.

Term

 

 

Splenius cervicis

 

Innervation

Definition

 

 

Posterior branches of cervical nerves.

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