Unit Test — Unit test Answers

14 verified answers
1
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What is one difference between the sternum and the femur?

A
The femur contains yellow marrow, but the sternum does not.
B
The femur is involved in protection, and the sternum is involved in movement.
C
The femur makes red blood cells, and the sternum makes white blood cells.
D
The femur contains compact bone, but the sternum does not.
2
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Fionna was told by her doctor to eat more foods that are high in calcium and potassium. Which statement best explains why Fionna’s doctor made this recommendation?

A
Fionna’s bones are weak and break easily.
B
Fionna’s bone marrow is not making enough blood.
C
Fionna’s joints are swollen and do not move properly.
D
Fionna’s tendons are strained, and she cannot walk.
3

Which list shows the correct order of living units, from smallest to largest?

A
bone, osteocyte, periosteum
B
periosteum, bone, osteocyte
C
bone, periosteum, osteocyte
D
osteocyte, periosteum, bone
4

The ellipsoidal joint at the base of the skull allows the head to

A
rotate from side to side.
B
move slightly sideways.
C
nod back and forth.
D
open and close the mandible.
5

Which correctly describes the joint that is pointed out in the diagram?

Question illustration
A
It is a synarthrosis joint because it can move slightly.
B
It is a synarthrosis joint because it can move freely.
C
It is a diarthrosis joint because it can move slightly.
D
It is a diarthrosis joint because it can move freely.
6

Which musculoskeletal careers require a minimum of three years of college-level science and math classes?

A
orthopedic surgeons, orthopedic technicians, and massage therapists
B
orthopedic technicians, physiatrists, and chiropractors
C
chiropractors, physiatrists, and physical therapists
D
orthopedic surgeons, chiropractors, and massage therapists
7

Which region of the spine is highlighted in yellow in the image below?

Question illustration
A
sacrum
B
thoracic
C
lumbar
D
cervical
8

Which answer choice correctly explains two functions of the muscular system that are illustrated in the image below?

Question illustration
A
to enable movement and to get rid of heat
B
to stabilize joints and to maintain posture
C
to enable movement and to stabilize joints
D
to get rid of heat and to maintain posture
9

What are the major organs of the skeletal system?

A
bones, bone marrow, and blood cells
B
bones, vertebrae, and nerves
C
bones, cartilage, and ligaments
D
bones, muscles, and joints
10

The picture below shows someone making a fist. The knuckles that are circled in the picture are formed at the joints of which bones?

Question illustration
A
carpals and metacarpals
B
metacarpals and phalanges
C
carpals and phalanges
D
phalanges and phalages
11

Which is a large, fan-shaped muscle that forms the chest and enables several arm movements?

A
sternocleidomastoid
B
pectoralis
C
biceps
D
transverse abdominis
13

Mr. Jenkins has a damaged spine. What might he have trouble doing?

A
breathing
B
smiling
C
lifting an arm
D
standing up straight
14

Which two structures does a tendon connect?

A
bone to bone
B
muscle to muscle
C
one connective tissue to another connective tissue
D
muscle to bone
15

The process of bone formation from fibers or cartilage is called

A
transplantation.
B
epiphisyeal closure.
C
ossification.
D
bone remodeling.
17

In a biology lab, a student has been asked to identify smooth muscle by looking at samples on the table. The student correctly identifies the smooth muscle because it is the muscle in the shape of

A
ropes.
B
circular cells.
C
flat layers.
D
bundles.
18

Which correctly matches connective tissue type with its function?

A
endomysium a layer of collagen that forms a layer around the whole muscle
Option A
B
epimysium a layer or connective tissue that surrounds each bundle of muscle fibers
Option B
C
perimysium a layer of connective tissue that adds support and protection to each muscle fiber
Option C
D
deep fascia helps organize masses of tissue into compact bundles to keep them in a specific location
Option D
19

What are articulations?

A
junctions in the body that connect organ to bone
B
junctions in the body that connect muscle to nervous tissue
C
junctions in the body that connect bone to bone
D
junctions in the body that connect muscle to organ
20

Diarthrosis joints are subclassified according to the kind of movement that they permit. Which types of diarthrosis joints allow rotational movement?

A
ball and socket, saddle, and pivot joints
B
ball and socket, ellipsoidal, and gliding joints
C
ellipsoidal, hinge, and pivot joints
D
ellipsoidal, saddle, and gliding joints

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