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MA278-BSC2346 Midterm Exam (A+++++ Answer) 2
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Question 1

Which statement is NOT true regarding the skeletal system?


A. Spongy bone of flat bones in adults is commonly filled with red bone marrow

B. External stresses placed on bone (such as exercise) will increase the bone matrix density

C. Osteocytes are “connected” to one another via canaliculi

D. Osteoclasts secrete collagen fibers to induce increased bone density

Question 2

Which choice is true regarding myoglobin?


A. It is a molecule that can store ATP molecules within the muscle cell

B. It is a molecule that can store glycogen to be used to make ATP

C. It causes muscle cells to have a reddish color/appearance

D. Found in high concentrations within fast glycolytic muscle fibers

Question 3

What statement is NOT true regarding synovial joints?


A. Every synovial joint has a meniscus

B. The joint cavity is completely surrounded by an articular capsule

C. The joint cavity contains synovial fluid

D. Articular cartilage covers the epiphyseal ends of articulating bones

Question 4

Which statement is true of articulations (joints)?


A. Cartilaginous joints are freely moveable

B. Tendons do not assist in stabilization of joints

C. Bursas assist cartilaginous joints function

D. Cranial bone sutures are classified as fibrous joints

Question 5

Autosomal recessive traits and disorders typically show up in each generation.




Question 6

Which bone cell is responsible for stimulating the production of extracellular matrix and increasing its overall concentration?


A. Osteocyte

B. Osteoblast

C. Osteogenic

D. Osteoclast

Question 7

Osmosis is the movement of random molecules from a high to low concentration across a selectively permeable membrane?




Question 8

What is the best statement to describe what a fascicle is?


A. It is a connective tissue covering around an individual muscle cell (fiber)

B. It is a connective tissue covering a group muscle cells (fibers)

C. It is a protective connective tissue covering around the muscle

D. It is a pathway for blood vessels to reach the muscle cells

Question 9

Blood cell production is a primary function of the skeletal system?




Question 10

The organic components of the extracellular matrix space include collagen fibers?




Question 11

A ligament connects a muscle to a bone while a tendon stabilizes a joint by connecting or joining one bone to another.




Question 12

The arrangement of the fascicles in a muscle influences the direction a muscle will contraction?




Question 13

Sodium ions (Na+) must bind to troponin in order for the muscle contraction process to occur?




Question 14

Which is not true of muscular tissue and/or muscle contraction?


A. Slow oxidative muscle fibers contain myoglobin giving these fibers a reddish color

B. A sarcomere consists of both thick and thin filaments

C. The sarcoplasmic reticulum stores the calcium ions utilized for muscle contraction

D. The passing of the action potential from the nerve to the muscle cell occurs because the nerve is in direct contact with the muscle cell

Question 15

The cross bridging process in muscle contraction requires ATP?




Question 16

Which type of skin cancer has the highest fatality rate?


A. Melanoma

B. Squamous cell carcinoma

C. Keratinoma

D. Basal cell carcinoma

Question 17

The majority of joints within the body are classified as:


A. Cartilaginous

B. Synovial

C. Fibrous

D. Synarthroses

Question 18

Aerobic respiration creates lactic acid as a by product but produces far more ATP than anaerobic respiration?




Question 19

Which cellular organelle is responsible for the production of ATP?


A. Lysosome

B. Mitochondria

C. Gogli apparatus

D. Nucleus

Question 20

A strain occurs when there is ligament damage to a joint?




Question 21

Parathyroid gland will cause an increase activity of the osteoclasts?




Question 22

Which choice is NOT true regarding bone tissue?


A. Trabeculae are found within spongy bone

B. One of the organic materials of bone include calcium

C. Osteocytes reside within a little open space called lacuna within bone tissue

D. The periosteum is the outer protective covering of bone

Question 23

This type of gland secretes an oily secretion that helps lubricate and keeps the skin and hair from becoming dried out?


A. Eccrine gland

B. Ceruminous gland

C. Sebaceous gland

D. Apocrine gland

Question 24

Which is the cell found in majority within the epidermis?


A. Melanocytes

B. Keratinocytes

C. Osteocytes

D. Basal cells

Question 25

Which is NOT true regarding the epiphyseal plates?


A. They can be utilized to determine whether a bone is still growing longitudinally

B. It is a result of bone being converted into cartilage so the bone can grow

C. They are not visible on X-ray because of the cartilage they are composed of

D. Commonly found at the epiphyses of long bones

Question 26

Which of the following muscles is not a SITS muscle?


A. Pectoralis major

B. Teres minor

C. Supraspinatus

D. Subscapularis

Question 27

Skin cancer originates in the dermis of the skin?




Question 28

A motor unit is all the muscle fibers one motor neuron innervates?




Question 29

This type of tissue is found exposed to external environments, lines hollow organs such as the stomach and bladder, and plays an integral role in the epidermis?


A. Nervous tissue

B. Connective tissue

C. Epithelial tissue

D. Muscular tissue

Question 30

What is NOT a Characteristic to a synovial joint?


A. Synovial fluid lubricates the joint and prevents excessive wear on the joints

B. The synovial membrane produces synovial fluid

C. The joint cavity space tends to stay the same through life even with trauma

D. The synovial joint is stabilized by ligaments

Question 31

What is NOT found in the dermis layer of skin?


A. Melanin

B. Collagen fibers

C. Elastic fibers

D. Muscular tissue

Question 32

Wolf’s law of bone relates to the concept of bone density is directly related to the dietary ingestion of calcium?




Question 33

For the thick filament and the thin filament to release or un-attach during muscle contraction, this process requires ATP?




Question 34

What is not a function of the integument system?


A. Assist in the production of vitamin D

B. Assist in regulation of the body temperature

C. Excretion of waste

D. Assist in the protection of calcium loss within the body

Question 35

Which statement is NOT true regarding muscles?


A. A sprain is damage to a muscle or its tendon

B. The antagonist muscle or muscle group opposes a movement of a particular muscle or muscle group

C. The insertion point of a muscle is attached to the moveable bone during joint motion

D. Certain muscles have multiple origin points

Question 36

Which choice best describes the function of the haversian (central) canals within bone?


A. To provide protection to the bone cells

B. To make bones less in weight

C. To provide nutrients to the bone cells

D. To make new collagen fibers within bone

Question 37

Which of the choices is NOT true regarding muscle contraction?


A. T-tubules help transmit the action potential deep into muscle cell to stimulate the release of calcium from the sarcoplasmic reticulum

B. The myosin head binds to the actin protein of the thin filament

C. ATP is needed for the power stroke to occur

D. A nerve impulse (action potential) is required to have acetylcholine released into the synaptic cleft

Question 38

Which statement is true regarding osteoarthritis?


A. The damage is usually reversible

B. It commonly occurs in younger individuals

C. Degenerative changes occur to the articular cartilage

D. It is an autoimmune disease

Question 39

Aerobic respiration is performed by which cellular organelle?


A. Nucleus

B. Gogli apparatus

C. Mitochondria

D. Smooth endoplasmic reticulum

Question 40

What statement is true of the glenohumeral (shoulder) joint?


A. The bones of the shoulder joint include the humerus, scapula and sternum

B. The humeral head is connected deep into the acetabulum of the scapula by a ligament

C. The SITS muscle tendons help stabilize the shoulder joint

D. The hip joint commonly dislocates more frequently than the shoulder joint

Question 41

Which statement is true of the epiphyseal plates of bones?


A. Allow for longitudinal bone growth to occur

B. Produce the blood cells for the skeletal system

C. Largely composed of collagen and elastic fibers

D. Found in bones of adults and children

Question 42

Which statement is NOT true regarding the hip?


A. Is commonly dislocated

B. It is considered a synovial joint

C. It is more stable then the glenohumeral (shoulder) joint

D. It has a ligament that connects the femoral head into the acetabulum

Question 43

Which statement is NOT true regarding articulations?


A. The hip joint contains a meniscus which helps stabilizes the joint

B. The knee joint has four main ligaments that stabilize it

C. The articulation between two vertebrae is classified as a cartilaginous joint

D. The wrist joint is classified as a synovial joint

Question 44

What is the layer between the epidermis and dermis that is ultimately responsible for fingerprints called?


A. Reticular layer

B. Friction ridges

C. Dermal papillae

D. Flexure lines

Question 45

Negative feedback loops are utilized by the body to maintain metabolism?




Question 46

Which is NOT true regarding osteoporosis?


A. Vertebrae and femoral neck fractures are a common complication

B. It is loss of density of the matrix in spongy bone only

C. It is commonly diagnosed in post-menopausal women

D. Vitamin D plays an important role in its prevention

Question 47

Which of the following protein molecules provides the binding site for the myosin heads?


A. Tropomyosin

B. Myofilament

C. Troponin

D. Actin

Question 48

A bursa can reduce the friction of a tendon rubbing over a bone?




Question 49

The first step in bone fracture repair is the formation of the fibrocartilaginous callus?




Question 50

Which statement is NOT true of articulations (joints)?


A. The knee joint contains a mensci to help minimize wear and tear on the joint surfaces

B. The ends of bones within a synovial joint are all covered with articular cartilage

C. The shoulder joint is mainly stabilized by the SITS muscles

D. Damage done to joints by osteoarthritis is reversible

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