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Study Guide for Ch.11 Muscle Anatomy & Terminology

1. Draw and give an example of a parallel, convergent, unipennate, bipennate, multipennate, and circular muscle.

[pic]

2. In the above types of muscles which structures organization dictates the type?

FASCICLE

3. What is a lever and how does it involve a fulcrum?

A RIGID STRUCTURE THAT MOVES ON A FIXED POINT (FULCRUM)

4. What is the difference between a first, second, and third class lever? You may want to illustrate and give an example for parts of the body that utilize the above lever types.

[pic]

4. In a muscle, which part moves: origin or insertion?

5. Use arrows & stick figures to draw the types of motion represented below:

Abduction & adduction:

[pic]

Flexion & extension:

[pic]

Pronation & Supination:

[pic]

Rotation:

[pic]

6. In a muscle group how do you define an agonist, antagonist, synergist, and fixator?

AGONIST- Prime Mover

ANTAGONIST- Resists the Prime Mover

SYNERGIST- Assists the Prime Mover

FIXATOR- Stabilizes the Prime Mover

7. What are the 6 different ways a muscle may be named?

LOCATION

ORIGINS & INSERTION

FASCICLE ORGANIZATION

POSITION

STRUCTURAL CHARACTERISTICS

ACTION

8. Explain where you would find the following muscles: General Area is Fine

*BUCCINATOR: Cheek

*MENTALIS: Chin

*ORBICULARIS ORIS: Mouth

*ORBICULARIS OCULI: Eye

*PLATYSMA: Neck

*FRONTALIS: Forehead

*MASSETER: Cheek

*TEMPORALIS: Temples

*STERNOCLEIDOMASTOID: Neck

*EXTERNAL & INTERNAL OBLIQUES: Sides

*SERRATUS ANTERIOR: Sides/Armpit/Axillary Region

*RECTUS ABDOMINUS: Abdominal

*TRANSVERSE ABDOMINUS: Abdominal

*RHOMBOID MAJOR & MINOR: Shoulder

*EXTERNAL & INTERNAL INTERCOSTALS: Ribs

*TRAPEZIUS: Back/Back of Neck

*INFRASPINATUS: Shoulder

*SUPRASPINATUS: Shoulder

*DELTOID: Shoulder

*LATISSIMUS DORSI: Back

*GLUTEUS MEDIUS: Lower Back/ Buttocks

*GLUTEUS MAXIMUS: Lower Back/ Buttocks

*TERES MAJOR: Shoulder

*TERES MINOR: Shoulder

*PECTORALIS MAJOR/MINOR: Chest

*SUBSCAPULARIS: Shoulder

*SARTORIUS: Upper Thigh

*RECTUS FEMORIS: Upper Thigh

*GRACILIS: Upper Thigh

*BICEPS BRACHII: Arm

*TRICEPS BRACHII: Arm

*BRACHIORADIALIS: Forearm

*BRACHIALIS: Arm

*FLEXOR CARPI RADIALIS & ULNARIS: Forearm

*EXTENSOR CARPI RADIALIS & ULNARIS: Forearm

*VASTUS LATERALIS & MEDIALIS: Upper Thigh

*SEMIMEMBRANOSUS: Upper Thigh

*SEMITENDONOSUS: Upper Thigh

*BICEPS FEMORIS: Upper Thigh

*SOLEUS: Lower Leg

*GASTROCNEMIUS: Lower Leg

*TIBIALIS ANTERIOR: Lower Leg

YOU WILL ALSO NEED TO BE ABLE TO GIVE THE ORIGIN, INSERTION, & ACTION OF THE ABOVE MUSCLES!!!

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Third Class Lever is Most Common

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