A&P 1 Lab Exam 3 words only

flexion of arm

Name one action of the pectoralis major muscle.

adduction of scapula

Name one action of the trapezius muscle.

linea aspera of the femur

Name one origin of the vastus medialis muscle.

isometric

If we place a muscle under more load than it can lift and stimulate it, what type of contraction will we produce?

latent period

The three phases of a muscle twitch are the contraction period, the relaxation period, and the:

twitch

A single contraction of a muscle is called a _____________?

medial and lateral condyles of the femur

Name one origin of the gastrocnemius muscle.

xiphoid process of the sternum

Name one insertion of the rectus abdominis muscle.

treppe

If we stimulate a muscle, and then stimulate it again immediately after it has been allowed to relax, we observe that the second contraction of the muscle is slightly greater than the first. What do we call this phenomenon?

flexion of the thigh at the hip

Name one action of the rectus femoris muscle.

flexion of the forearm at the elbow

Name one action of the biceps brachii muscle.

clavicle

Name one origin of the pectoralis major muscle

adduction of thigh at the hip

Name one action of the gracilis muscle.

passive

What type of force is produced by the elastic recoil of a stretched muscle?

extension of the fingers at the metacarpal and phalangeal joints

Name one action of the extensor digitorum muscle.

frontal bone

Name one origin of the orbicularis oculi muscle.

coronoid process of the ulna

Name one insertion of the brachialis muscle.

perimysium

The connective tissue sheath that forms around a bundle of skeletal muscle cells is called:

muscle fibers

Skeletal muscles cells are called:

tendon

A strong, cord-like bundle of connective tissue that connects a muscle to another muscle or to a bone is called:

flexion and rotation of vertebral column

Name one action of the rectus abdominis muscle.

skin

Name one insertion of the platysma muscle.

medial surface of tibia

Name one insertion of the gracilis muscle.

acromion and spinous process of scapula

Name one origin of the deltoid muscle.

zygomatic bone

Name one origin of the zygomaticus major/minor muscle.

calcaneus

Name one insertion of the gastrocnemius muscle.

epimysium

The connective tissue sheath that forms around an entire skeletal muscle is called:

distal portion of the anterior humerus

Name one origin of the brachialis muscle.

ischial tuberosity

Name one origin of the semimembranosus muscle.

tibial tuberosity

Name one insertion of the vastus medialis muscle.

maxillary bone

Name one origin of the buccinator muscle.

intertubercular sulcus of the humerus

Name one insertion of the pectoralis major muscle.

infraspinous fossa of the scapula

Name one origin of the infraspinatus muscle.

linea alba

Name one insertion of the external oblique muscle.

tenses the skin of the neck

Name one action of the platysma muscle.

greater tubercle of the humerus

Name one insertion of the supraspinatus muscle.

manubrium of the sternum

Name one origin of the sternocleidomastoid muscle.

rotation of the head

Name one action of the sternocleidomastoid muscle.

angle and ramus of the mandible

Name one insertion of the masseter muscle.

deltoid tuberosity of the humerus

Name one insertion of the deltoid muscle.

elevation of mandible

Name one action of the masseter muscle.

orbicularis oris muscle

Name one insertion of the buccinator muscle.

extension of the forearm at the elbow

Name one action of the triceps brachii muscle.

ischial tuberosity

Name one origin of the semitendinosus muscle.

closes the eyelids

Name one action of the orbicularis oculi muscle.

coracoid process

Name one origin of the biceps brachii muscle.

zygomatic bone

Name one origin of the masseter muscle.

greater tubercle of the humerus

Name one insertion of the infraspinatus muscle.

posterior humerus

Name one origin of the triceps brachii muscle.

recruitment

By steadily increasing the number of motor units that are activated, we produce a steady increase in the force produced by a muscle. This process is called __________________?

skin and muscle at the corner of the mouth

Name one insertion of the zygomaticus major/minor muscle.

extension of the lower leg at the knee

Name one action of the vastus medialis muscle

abduction of the arm at the shoulder

Name one action of the deltoid muscle.

base of metacarpals 2 and 3

Name one insertion of the flexor carpi radialis muscle.

flexion of the forearm at the elbow

Name one action of the brachialis muscle.

radial tuberosity

Name one insertion of the biceps brachii muscle.

extension of the thigh at the hip

Name one action of the semitendinosus muscle.

medial condyle of the tibia

Name one insertion of the semimembranosus muscle.

plantar flexion of foot at the tarsal joints

Name one action of the gastrocnemius muscle.

elevation of the lateral corners of the mouth

Name one action of the zygomaticus major/minor muscle.

contraction period

The three phases of a muscle twitch are the latent period, the relaxation period, and the:

eyelid

Name one insertion of the orbicularis oculi muscle.

tetanus

If we increase the frequence of stimulation of a muscle untill we acheive a steady sustained contraction, we will have caused what phenomenon?

lower eight ribs

Name one origin of the external oblique muscle.

distal phalanges of fingers 2-5

Name one insertion of the extensor digitorum muscle.

occipital bone

Name one origin of the trapezius muscle.

flexion and rotation of vertebral column

Name one action of the external oblique muscle.

dorsiflexion of the foot at the tarsal joints

Name one action of the tibialis anterior muscle.

ramus and body of the pubis

Name one origin of the gracilis muscle.

lateral epicondyle of the humerus

Name one origin of the extensor digitorum muscle.

sternum

Name one origin of the pectoralis major muscle.

olecranon of ulna

Name one insertion of the triceps brachii muscle.

treppe

In what way is the stimulation of a muscle to produce treppe different from stimulation to produce summation?

tibial tuberosity

Name one insertion of the rectus femoris muscle.

acromion and spinous process of the scapula

Name one insertion of the trapezius muscle.

lateral rotation of the arm at the shoulder

Name one action of the infraspinatus muscle.

sarcoplasmic reticulum

From what cellular organelle is calcium released during the latent period of a muscle twitch?

mastoid process of temporal

Name one insertion of the sternocleidomastoid muscle.

aponeurosis

A flat, sheet-like bundle of connective tissue that connects a muscle to another muscle or to a bone is called:

fascia of chest

Name one origin of the platysma muscle.

relaxation period

The three phases of a muscle twitch are the contraction period, the latent period, and the:

supraspinous of fossa of scapula

Name one origin of the supraspinatus muscle.

isotonic

If a muscle contracts against a load that it is able to lift, what type of contraction is the muscle demonstrating?

medial aspect of upper tibial shift

Name one insertion of the semitendinosus muscle.

isometric

If a muscle contracts against a load that is too heavy for the muscle to lift, what type of contraction is the muscle demonstrating?

lateral condyle of the tibia

Name one origin of the tibialis anterior muscle.

anterior inferior iliac spine

Name one origin of the rectus femoris muscle.

medial cuneiform bone

Name one insertion of the tibialis anterior muscle.

pubic crest and symphysis

Name one origin of the rectus abdominis muscle.

frequency of stimulation

What experimental factor do we increase to produce tetany rather than simple wave summation?

extension of the thigh at the hip

Name one action of the semimembanosus muscle.

compresses the cheeks

Name one action of the buccinator muscle.

Serratus anterior

You locate a series of muscle segments following the pattern of the ribs along the lateral surface of the chest.  These muscles extend from the back to the lateral surface of the chest.  The muscle group you have located is the:

Pectoralis major

You locate a fan-shaped muscle covering the upper portion of the chest and extending to the intertubercular sulcus of the humerus.  The muscle you have located is the:

Levator scapulae

You locate a strap-like muscle running from the superior part of the neck to the medial margin of the scapula.  This muscle extends from the transverse processes of the first four cervical vertebrae to the medial margin of the scapula above the spine of the scapula.  The muscle you have located is the:

Rhomboid minor

You have located a strap-like muscle between the medial margin of the scapula and the midline of the spinal column.  This muscle extends from the spinous processes of the seventh cervical vertebra and the first thoracic vertebra to the medial margin of the scapula even with the spine of the scapula.  The muscle you have located is the:

Semimembranosus

You locate a muscle on the posterior surface of the thigh that lies on the medial side.  This muscle is the deeper of the two muscles in this location.  This muscle extends from the tuberosity of the ischium to the medial condyle of the tibia and the lateral condyle of the femur.  The muscle you have located is the:

Bicep femoris

You locate a the muscle on the posterior surface of the thigh that lies on the lateral side.  This muscle extends from the tuberosity of the ischium and the linea aspera of the femur to the lateral side of the head of the fibula.  The muscle you have located is the:

Flexor carpi radialis

You locate a muscle on the anterior and lateral side of the forearm whose tendon leads to the base of the thumb.  This muscle extends from the medial epicondyle of the humerus to the base of the second and third metacarpals.  The muscle you have located is the:

Brachialis

You locate a muscle on the proximal and lateral (thumb) side of the forearm.  This muscle is adjacent to the V-shaped gap at the bend of the elbow, wrapping around the forearm from the posterior side to the lateral side of the wrist.  The muscle you have located is the: