EXAM 3 ANATOMY

the __ of the scapula articulates with the clavicle

acromion

the vomer and the perpendicular plate of the ethmoid bone form part of the

nasal septum

Another name for the heel bone is the __

calcaneus

which portion of the fibula articulates with the talus

lateral malleolus

The __ is not a weight bearing bone

fibula

Which joints are correctly matched?

knee ; hinge

Looking up at the ceiling would be an example of

hyperextension

Which of the following is an example of a cartilaginous joint?

synchondrosis

Which movement increases the joint angle between articulating bone?

extension

Which of the following does NOT contribute to joint stability?

the amount of synovial fluid in the joint cavity

What are the menisci of the knee joints

tendon sheaths

What is moving a limb away from a midline of the body along the frontal plane called?

abduction

Choose the statement which best describes the angular movements

they change (increase/decrease) the angle between 2 bones

Which joint is an example of sacrificed stability for the sake of greater of movement?

glenohumeral

Synarthrotic joints ___

are immovable joints

Thick filaments of the sarcomere are composed of

myosin

A somatic motor neuron releases __ into the neuromuscular junction to stimulate muscle contraction

acetylcholine

3 of the following events occur within the skeletal muscle; one of them occurs in the motor neuron. Which one would that be?

voltage-gated calcium entry triggers exocytosis of acetylcholinee

The protein in sarcomeres that binds calcium is called

troponin

Which part of the skeletal muscle fiber contains acetylcholine receptors

motor end plate

In an isometric contraction, the muscle

does not change in length but increases tension

Individual skeletal muscle fibers (cells) are surrounded by

endomysium

Excitation- contraction coupling represents the events within a skeletal muscle fiber where the electrical energy of the ap is transduced into mechanical energy of contraction. hint- its stored in the sr
Which ions the "coupler" in E-C coupling?

calcium

Which structure in skeletal muscle cells functions in calcium storage

sarcoplasmic reticulum

All of the following are functions of the skeletal muscle tissue except

hormone secretion

the articulates with the occipital condyles of the skull

axis

Which portion of the fibular articulates with the talus

lateral malleolus

the suture that connects the occipital bone with the parietal bones is the

lambdoid

The _____ of the scapula articulates with the clavicle.

acromion

which vertebral process can be felt along the midline of the back

spinous process

which represents symphysis

intervertebral discs

which joint allows side to side movement called lateral excursion

temporomandibular joint

A

squamous suture

B

lambdoid suture

C

zygomatic process

D

mastoid process

E

styloid process

A

greater tubercle

B

lesser tubercle

C

capitulum

D

trochlea

E

deltoid tuberosity

A

radius

B

olecranon

C

trochlear notch

D

coronoid process

E

ulna

A

trochlea

B

articular cartilage of the trochlear notch

C

articular capsule

D

synovial membrane

E

coronoid process

A

myosin molecule

B

actin subunits

C

ATP Binding Site

D

tropomyosin

E

troponin

A

neck

B

greater trochanter

C

lesser trochanter

D

media condyle

E

lateral condyle

A

sphenoid bone

B

zygomatic bone

C

maxilla

D

inferior nasal concha

E

vomer

A

fibular collateral ligament

C

tibial collateral ligament

E

patellar ligament

A

thin filament

B

z disc

C

h zone

D

I band

E

A band