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Flashcards / muscles of the upper torso

muscles of the upper torso

muscles of the upper torso

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Tags: University of Phoenix-West Florida Campus
Cost: 25
Name: muscles of the upper torso
Uploaded: 04/10/2016
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Front
Back

H&N Where is the masseter located?

Between the cheek and the lower jaw.

H&N What is the function of the masseter?

It connects the upper and lower jaw.

H&N Describe the action of the masseter muscle:

flex

H&N Where is the obicularis oculi located?

It surrounds the eye.

H&N Describe the action of the orbicularis oculi muscle:

facial expression

H&N Where is the orbicularis oris located?

Around the mouth.

H&N Describe the action of the orbicular is oris:

facial expression

H&N Where is the platysma located?

It covers the side of the neck and flexes the chin. (not on model)

H&N Describe the action of the platysma:

facial expression (not on model)

H&N Where is the frontalis located?

It covers the frontal bone.

H&N Describe the action of the frontalis:

facial expression

H&N Where is the sternocleidomastoid located?

It connects the sternum to the mastoid.

H&N Describe the action of the sternocleidomastoid:

facial expression

H&N Where is the sternohyoid located?

It connects the sternum to the hyoid.

H&N Describe the action of the sternohyoid:

facial expression

H&N Where is the temporalis located?

Covers the temporal bone.

H&N Describe the action of the temporalis:

mastication -closes jaw -elevates mandible

H&N Where is the zygomaticus major located?

Along the zygomatic process. Beneath the zygomaticus minor.

H&N Describe the action of the zygomaticus major:

facial expression Raises the corners of the mouth (smiling).

H&N Where is the zygomaticus minor located?

Along the zygomatic process. Above the zygomaticus major.

H&N Describe the action of the zygomaticus minor:

facial expression Raises the corners of the mouth (smiling)

H&N Name the muscle that is responsible for mastication:

Temporalis

H&N Name the flex muscle of the head and neck:

masseter

H&N Name the 8 muscles that are responsible for facial expression:

1.) orbicularis oculi 2.) orbicularis oris 3.) platysma (not on model) 4.) frontalis 5.) sternocleidomastoid 6.) sternohyoid 7.) zygomaticus major 8.) zygomaticus minor

T Where is the aponeurosis located?

It connects the external obliques.

T Describe the function of the aponeurosis:

fixator

T Where is the diaphragm located

Underneath the rectus abdominus. (no number)

T Describe the function of the diaphragm

breathing (no number)

T Where are the external obliques located?

On the sides of the trunk.

T Describe the function of the external obliques:

rotating, lateral flexing of the trunk

T Where are the intercostals located?

deep, (no number)

T Describe the function of the intercostals:

breathing

T Where is the serratus anterior located?

On the sides of the chest.

T Describe the function of the serratus anterior:

fixator, provides a solid base for arm movement.

T Where is the latissimus dorsi located?

It is the broad flat muscle of the lower back.

T Describe the function of the latissimus dorsi:

Arm extension, adducts and medially rotates arm, striking blow of arm.

T Where is the pectoralis major located?

It is the large fan shaped muscle of the upper chest.

T Describe the function of the pectoralis major:

arm flexion

T Where is the rectus abdominus located?

It is segmented from the pubis to the ribcage, medial superficial muscle.

T Describe the function of the rectus abdominus:

flexes the abdominal column

T Where is the trapezius located?

It connects the back stuff, comes up over the shoulders, V-shaped across back.

T Describe the function of the trapezius:

fixator Connects the back stuff, locks up and freezes the scapula as you move your arms back.

UA Where is the biceps brachii located?

On the front of the arm

UA Describe the function of the biceps brachia:

Flexes the elbow, and suppinates the forearm.

UA Where is the brachialis located?

On the front medial part of the arm.

UA Describe the function of the brachialis:

It is a major arm flexor

UA Where is the deltoid located?

It is the muscle of the shoulder

UA Describe the function of the deltoid:

arm abduction, can aid in flexion, extension, and rotation of the humerus.

UA Where is the triceps brachi located?

On the back of the arm.

UA Describe the function of the triceps brachia:

extension of the arm

RCM Where is the infraspinatus located?

Just below the spine.

RCM Describe the function of the infraspinatus:

Rotator. Connected by tendons to the scapula, clavicle, and humerus. Allows for arm rotation/movement.

RCM Where is the supraspinatus located?

Just above the infraspinatus but below the spine.

RCM Describe the function of the supraspinatus:

Rotator. Connected by tendons to the scapula, clavicle, and humerus. Allows for arm rotation/movement.

RCM Where is the teres major located?

Below the two spinatus but below the teres minor.

RCM Describe the function of the teres major:

Rotator. Connected by tendons to the scapula, clavicle, and humerus. Allows for arm rotation/movement.

RCM Where is the teres minor located?

Below the two spinatus, but above the teres minor.

RCM Describe the function of the teres minor:

Rotator. Connected by tendons to the scapula, clavicle, and humerus. Allows for arm rotation/movement.