Lab Practical 3

Pectoralis Major: In the human, for what movement is this muscle the prime mover?

pushing forward

Pectoralis Major: Name a muscle that serves as a synergist to this muscle?

triceps brachii

Pectoralis Major: What is the antagonist to this muscle?

lattisimus dorsi

Pectoralis Minor: In the human, what is the action of this muscle?

elevates ribs

Xiphihumeralis: What are the attachment points for this muscle?

xiphoid process of the sternum, humerus

Pectoantebrachialis: What is this a synergist to?

pectoralis major/minor and deltoids

Serratus Anterior: What are the attachment points for this muscle?

ribs, scapula

Latissimus Dorsi: Name a movement in which this muscle is the prime mover?

rowing

Latissimus Dorsi: What is the antagonist to this muscle?

pectoralis major, deltoids

Spinotrapezius: What is an action for this human muscle?

move scapula

Spinotrapezius: What is an attachment point for this muscle?

spine of scapula

Acromiotrapezius: What is an attachment for this cat muscle?

acromion process of the scapula

Acromiotrapezius: What is the difference between a trapezoid and a rhombus?

number of parallel sides, all 4 sides are equal on a rhombus

Clavotrapezius: What specific region of the occipital bone of the skull serves as an attachment point for this muscle?

external occipital protuberance

Levator Scapulae: What is the action of this muscle?

elevate scapula

Rhomboideus major: In the human, what shape does this muscle take?

diamond shaped, rhombus

Rhomboideus major: What is the action of this muscle?

adducts scapula

Rhomboideus minor: In the human, what shape does this muscle take?

rhombus

Rhomboideus minor: What is the action of this muscle?

adduct scapula

Teres major: What muscle does this serve as a high gear companion?

lattisimus dorsi

Teres Major: What are the attachment points for this muscle?

scapula, intertubercular groove of humerus

Sternomastoid: What is the muscle in the human that completes the same action as this muscle?

sternocleidomastoid

Cleidomastoid: What are the attachment points for this muscle?

clavicle, mastoid process of the temporal bone

Sternohyoid: What are the attachment points for this muscle?

clavicle, manubrium, hyoid

Digastric: What are the attachment points for this muscle?

mastoid process, mandible, hyoid

Diagastric: What is the action of this muscle?

depresses mandible

Clavobrachialis (clavodeltoid): What are the attachment points for this muscle?

clavicle, deltoid tuberosity of humerus

Clavobrachialis (clavodeltoid): What human head of the deltoid would this muscle be synonymous to?

anterior head

Acromiodeltoid: In what human movement does this serve as a prime mover?

pushing over the head

Acromiodeltoid: What muscle is a synergist to this muscle?

spinodeltoid

Spinodeltoid: What is an action for this muscle?

elevate and rotate humerus

Spinodeltoid: What are the attachment points for this muscle?

spine of scapula, deltoid tuberosity of humerus

Spinodeltoid: What human head of the deltoids would this muscle be synonymous to?

posterior head

Biceps brachii: What is the action of this muscle?

flexes forearm

Biceps brachii: What does the name of this muscle mean?

2 heads

Triceps brachii - long head: What is the action of this muscle?

extends forearm

Triceps brachii - long head: What is the antagonist of this muscle?

biceps brachii

Triceps brachii - lateral head: This muscle serves as a synergist, name a muscle (in the human) for which it does?

pectoralis major

Triceps brachii - medial head: How was this muscle named?

3 heads

Triceps brachii - medial head: Name the attachment points for this muscle.

humerus

Epitrochlearis: Is this a human or cat muscle?

cat

Brachialis: What does this muscle act as a synergist to?

biceps brachii

Brachialis: What is the action of this muscle?

flexes forearm

Brachioradialis: What are the attachment points for this muscle?

lateral epicondyle of humerus, styloid process of radius

Rectus abdominis: What action does this serve as the prime mover for?

flexes vertebral column

External oblique: How does this muscle help in coughing?

it compresses the abdomen

Internal oblique: Explain how the fibers of this muscle compare to that of the rectus abdominis.

deep angle to rectus abdominus, 45 degrees

Transverse abdominis: Explain how the fibers of this muscle compare to that of the rectus abdominis.

perpendicular

Semitendinosus: What muscle group is this a part of?

hamstrings

Semitendinosus: What is the action of this muscle?

flexes the leg and extends the thigh

Semitendinosus: What is this the antagonist to?

quadriceps

Semimembranosus: What muscle group is this a part of?

hamstrings

Semimembranosus: What is the action of this muscle?

flexes the leg and extends the thigh

Biceps femoris: Explain the naming of this muscle.

2 heads femur

Biceps femoris: What is this the antagonist to?

quadriceps

Rectus femoris: Explain the naming of this muscle.

straight femur

Rectus femoris: What action is this the prime mover for?

jumping

Vastus lateralis: What is the action of this muscle?

extends the lower leg

Vastus lateralis: What muscle group is this a part of?

quadriceps

Vastus medialis: What is the action of this muscle?

extends the lower leg

Vastus medialis: What muscle group is this a part of?

quadriceps

Vastus intermedius: What are the attachment points for this muscle?

femur, tibial tuberosity via patellar tendon

Sartorius: What are the attachment points for this muscle?

ilium, tibia

Gracilis: Is this a cat muscle, human muscle, or both?

both

Adductor longus: What is the action of this muscle?

adducts the thigh

Adductor femoris: What are the attachment points for this muscle?

ischial tuberosity, femur

Tensor fasciae latae: ?

attachment- ilium, IT band, found in cat, action- abduct the leg

Soleus: What muscle does this act as a synergist to?

gastrocnemius

Tibialis Anterior: What action does this muscle have?

dorsal flexion, lift toes

Tibialis Anterior: What painful disorder is associated with this muscle?

shin splints

Gastrocnemius: What action does this muscle have?

plantar flexion

Gastrocnemius: What is the distal attachment for this muscle?

calcaneus via Achilles tendon

Gluteus maximus: This serves as a high gear muscle. What muscle group is the low gear partner to this?

hamstrings

Gluteus medius: What are the attachment points for this muscle?

ilium, greater trochanter of femur

Caudofemoralis: ?

above biceps femoris, abducts the thigh, flexes tail