Practice test

Which of these statements is not true about intramembranous bones? a. They begin with a cartilage model. b. They form between flat sheets of connective tissue. c. Skull bones are formed in this way. d. Osteoblasts deposit new bone along blood vessels within the layers.

A

By morphology, the parietal bone can be classified as a _____ bone.

Flat

The cells that tear down and remodel bone are the ________________.

Osteoclasts

Which bones would contain significant amounts of red bone marrow in an adult?

Sternum

When a nervous impulse travels from a neuron to a muscle cell, what happens next?

The impulse travels over the sarcolemma in all directions.

One of the following statements about muscular responses is not true. Choose that one.

When a person is fully at rest, none of her muscles are contracting.

The medullary cavity by the diaphysis of an adult bone would contain _____

Yellow bone marrow

Which of these statements is correct regarding muscle contraction? a. The impulse travels over the sarcolemma in all directions. b. Calcium is released from the sarcoplasmic reticulum. c. Linkages form between the actin and myosin. . Acetylcholine is decomposed by acetylcholinesterase.

a

A motor unit is made up of _______________.

a motor neuron and the muscle fibers it innervates

Moving the right eye towards the right is an example of:

abduction

Another name for the wrist bones is _______________.

carpals

Muscles that are not used, may degenerate or undergo a process of _____.

atrophy

Which type of joint is the most mobile? The shoulder and hip are two examples of this type of joint.

ball-and-socket joint

What is the last stage in the repair of a fracture?

bony callus

Which muscle is the strongest flexor of the elbow?

brachialis

Moving an arm so that it traces a circle is called _____.

circumduction

which skull bones are not part of the cranium? a. frontal b. temporal c. ethmoid d. maxilla

d

If a person bent their foot at the ankle upward toward the shin, it would be an example of __________.

dorsiflexion

The junction between the diaphysis and epiphysis is called the _____.

epiphyseal disk

The part of the bone that the articular cartilage covers directly is the _____.

epiphysis

A soft spot in a newborn's skull is called a __________________.

fontanel

Which bones do not belong to the axial skeleton?

hip bone

Some synovial joints, such as the knee, contain interior pads of fibrocartilage, called ______________, that help to stabilize the joint.

menisci

The crossbridges involved in muscle contraction are located on the ________________.

myosin

The segment of a myofibril that is called a sarcomere runs from

one Z line to the next Z line

Compact bone is made up of _______________ cemented together.

osteocytes

The layer of connective tissue that separates the muscle tissue into small sections is called the

perimysium

The outer covering of each bone, made from fibrous connective tissue, is called the ________________.

periosteum

The pectoral girdle is made up of the clavicle and the ________________.

scapula

Inside the epiphyses of each long bone, mostly ________________ can be found.

spongy

The application of multiple stimuli to a muscle is defined as the process called _____.

summation

Into what does the neuron release its neurotransmitter at the neuromuscular junction?

synaptic cleft (neuromuscular junction)

Which description of muscle contraction means that all of the fibers within a muscle are fully contracted?

tetanic

The term _____ refers to the constant state of contraction of a certain number of fibers within a muscle.

tone

The ______________ are an invagination of the muscle cell's sarcolemma.

transverse (T) tubules

The prominent portions of the cheeks are made up of the _________________ bones.

zygomatic