24
Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Embed Size (px)

Citation preview

Page 1: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Page 2: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Shoulder Muscles

Trapezius Traps

Deltoid Delts

Page 3: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Trapezius (Traps) Function: Raises

head and shoulders

Origin: back of the neck and upper vertebrate

Insertion: clavicle and scapula

Page 4: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Deltoid (Delts) Function: Raises

the upper arm

Origin: the spine of the scapula and the clavicle

Insertion: the top of the humerus

Page 5: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Back

Teres Major Latissimus Dorsi

Lats Erector Spinae Rhomboids

Page 6: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Teres Major Function:

rotation of the humerus

Origin: scapula

Insertion: humerus

Page 7: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Latissimus Dorsi (Lats) Function: moves

the arm backward

Origin: lumbar vertebrae

Insertion: humerus

Page 8: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Erector Spinae Function:

straightens the back

Origin: lower thoracic vertebrae and top of pelvis

Insertion: back of ribs and upper thoracic vertebrae

Page 9: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Rhomboids Function: (deep

muscle) extends the scapula (under the teres

major)

Origin: thoracic vertebrae

Insertion: front of scapula

Page 10: Muscles in the Shoulder, Chest, Arm, Stomach, and Back
Page 11: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Chest Muscles

Pectoralis Major Pecs

Serratus Anterior

Page 12: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Pectoralis Major (Pecs) Function: Moves

the arm across the chest

Origin: sternum and clavicle

Insertion: medial and lateral top of the humerus

Page 13: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Serratus Anterior Function: Moves

the scapula forward

Origin: upper ribs / side of the ribs

Insertion: scapula

Page 14: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Quiz

1. Name one of the two parts of muscle.2. The place where a muscle is anchored is

called what? 3. The temporalis and the masseter work

together to perform what function? 4. Name two of the six muscles of the

shoulder and back.5. What muscle group works in a pair with

your Lats (Latissimus Dorsi)?

Page 15: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Quiz/Review1. Name one of the two parts of muscle.

Tendon, Belly2. The place where a muscle is anchored is called what?

Origin3. The temporalis and the masseter work together to

perform what function? Move the lower jaw

4. Name two of the six muscles of the shoulder and back.

Traps, Delts, Teres Major, Lats, Erector Spinae,Rhomboids

5. What muscle group works in a pair with your Lats (Latissimus Dorsi)?

Pecs (Pectoralis Major)

Page 16: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Arm Muscles

Biceps Triceps Brachioradialis Flexor Carpi Extensor Carpi

Page 17: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Biceps Function: flexes

arm (anterior)

Origin: side of the scapula

Insertion: radius/ulna

Page 18: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Triceps Function:

extends/straightens arm (posterior)

Origin: side of the scapula and the humerus

Insertion: upper ulna

Page 19: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Brachioradialis Function: flexes the

elbow

Origin: lateral epicondyle of humerus

Insertion: radius

Page 20: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Flexor Carpi Function: Closes the

hand and fingers and flexes the wrist (anterior)

Origin: medial epicondyle of humerus

Insertion: metacarpals

Page 21: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Extensor Carpi Function: Opens the

hand and fingers and extends the wrist (posterior)

Origin: lateral epicondyle of humerus

Insertion: metacarpals

Page 22: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Stomach & Abdomen

Rectus Abdominis Abs

External Obliques

Internal Obliques

Page 23: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Rectus Abdominis Function: flexes

trunk of the body & pulls ribs to pelvis

Important for posture

Origin: front of pelvis

Insertion: front of ribs

Page 24: Muscles in the Shoulder, Chest, Arm, Stomach, and Back

Obliques External Oblique:

flexes the trunk of the body and twists torso

Origin: lower ribs

Insertion: top of pelvis

Internal Oblique: Same as external, except a deeper set of muscles