rasmussen MA278/BSC2346 Module 5 midterm 2019 latest 100% graded

Question # 00597642
Subject: General Questions
Due on: 06/30/2018
Posted On: 02/03/2019 07:10 PM
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rasmussen MA278/BSC2346 Module 5 midterm 2019 Graded

• Question 1

1 out of 1 points

Wolff’s law of bone states that bone density is directly related to the dietary ingestion of calcium.

True

False

• Question 2

1 out of 1 points

Which statement is true regarding osteoporosis?

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

It is most commonly diagnosed in pre-menopausal women

Vitamin D plays an important role in its prevention

Vertebrae and femoral neck fractures are a common complication in males only

• Question 3

1 out of 1 points

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

True

False

• Question 4

1 out of 1 points

Acetylcholine molecules must bind to troponin in order for the muscle contraction process to occur.

True

False

• Question 5

1 out of 1 points

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

The glenoid cavity can be found on the clavicle

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

The shoulder is among the most stable joints in the body

The SITS muscle tendons help stabilize the shoulder joint

• Question 6

1 out of 1 points

A motor unit is composed of all the muscle fibers that one motor neuron innervates.

True

False

• Question 7

1 out of 1 points

Which choice is true regarding bone tissue?

Trabeculae are found within compact bone

The periosteum is the inner, blood cell producing portion of bone

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

One of the organic materials of bone include calcium

• Question 8

1 out of 1 points

Parathyroid hormone will cause an increase activity in which of the following cells?

Osteoclasts

Osteoblasts

Osteocytes

Osteogenic cells

• Question 9

1 out of 1 points

Which of the following choices contains ridges that are ultimately responsible for fingerprints?

Flexure lines

Dermal papillae

Friction ridges

Reticular layer

• Question 10

1 out of 1 points

Which cellular organelle is responsible for the production of ATP?

Mitochondria

Lysosome

Gogli

apparatus

Nucleus

• Question 11

1 out of 1 points

Which statement is true of muscular tissue and/or muscle contraction?

A sarcomere consists of thin filaments only

The sarcoplasmic reticulum stores the acetylcholine molecules utilized for muscle contraction

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

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 12

1 out of 1 points

Which of the following composes the majority of the epidermis?

Melanocytes

Keratinocytes

Basal cells

Osteocytes

• Question 13

1 out of 1 points

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

True

False

• Question 14

1 out of 1 points

Which statement is true regarding muscles?

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

A sprain is damage to a muscle or its tendon

The insertion point of a muscle is attached to the fixed bone during joint motion

All muscles have multiple origin points

• Question 15

1 out of 1 points

Aerobic respiration creates lactic acid as a byproduct but produces far more ATP than anaerobic respiration.

True

False

• Question 16

1 out of 1 points

Which statement is true regarding the skeletal system?

Compact bone of flat bones in adults is commonly filled with red bone marrow

External stresses placed on bone (such as exercise) will decrease the bone matrix density

Osteocytes are “connected” to one another via canaliculi

Osteoclasts secrete collagen fibers to increase bone density

• Question 17

1 out of 1 points

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

Tropomyosin

Actin

Troponin

Myofilament

• Question 18

1 out of 1 points

Which of the following is found in the dermis layer of skin?

Subcutaneous fat

Elastic fibers

Granulosum layer

Melanin

• Question 19

1 out of 1 points

Which statement is true of articulations (joints)?

Cartilaginous joints are freely moveable

Cranial bone sutures are classified as fibrous joints

Bursas assist cartilaginous joints function

Tendons are essential to the stabilization of suture joints

• Question 20

1 out of 1 points

The process of detaching the thick filament from the thin filament during muscle relaxation requires ATP.

True

False

• Question 21

0 out of 1 points

Which choice is true regarding myoglobin?

Found in fast oxidative muscle fibers

It is a molecule that can store oxygen molecules within the muscle cell

It causes muscle cells to have a white color/appearance

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

• Question 22

1 out of 1 points

Which of the following statements is true of a synovial joint?

The synovial joint is stabilized by bursae

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

The bursae produce synovial fluid

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

• Question 23

1 out of 1 points

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

Nervous tissue

Muscular tissue

Connective tissue

Epithelial tissue

• Question 24

1 out of 1 points

A strain occurs when there is damage to:

Ligaments

Tendons

Synovial sheaths

Articular cartilage

• Question 25

1 out of 1 points

Which statement is true of articulations (joints)?

The shoulder joint is mainly stabilized by the trapezius and pectoral muscles

The glenohumeral joint contains mensci to help minimize wear and tear on the joint surfaces

Damage done to joints by osteoarthritis is easily reversible

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

• Question 26

1 out of 1 points

DNA is stored in which cellular organelle?

Gogli apparatus

Smooth endoplasmic reticulum

Mitochondria

Nucleus

• Question 27

1 out of 1 points

Which statement is true of the epiphyseal plates of bones?

Found in bones of adults and children

Allow for longitudinal bone growth to occur

Produce the blood cells for the skeletal system

Largely composed of collagen and elastic fibers

• Question 28

1 out of 1 points

Hematopoiesis is a primary function of the muscular system.

True

False

• Question 29

1 out of 1 points

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

To provide nutrients to the bone cells

To provide protection to the bone cells

To reduce weight of bone tissue

To produce new elastic fibers within bone

• Question 30

1 out of 1 points

Increasing intensity of contractions during labor is an example of negative feedback.

True

False

• Question 31

1 out of 1 points

The arrangement of the fascicles in a muscle influences the direction a muscle will contract.

True

False

• Question 32

1 out of 1 points

Enzymes are used to speed up chemical reactions within the body.

True

False

• Question 33

1 out of 1 points

Skin cancer originates in the dermis of the skin.

True

False

• Question 34

1 out of 1 points

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

True

False

• Question 35

1 out of 1 points

Which of the following is a function of the integument system?

Excretion of fat cells

Assist in the production of vitamin C

Assist in regulation of the body temperature

Assist in the protection of calcium loss within the body

• Question 36

1 out of 1 points

Which of the choices is true regarding muscle contraction?

A nerve impulse (action potential) is required to have sodium and potassium released into the synaptic cleft

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

ATP is needed for the power stroke to occur

The myosin head binds to the troponin and tropomyosin proteins of the thin filament

• Question 37

1 out of 1 points

Which bone cell is responsible for breaking down bone tissue?

Osteocyte

Osteoblast

Osteogenic

Osteoclast

• Question 38

1 out of 1 points

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

True

False

• Question 39

1 out of 1 points

Which statement is true regarding synovial joints?

Every synovial joint cavity contains fibrocartilage

The joint cavity is completely surrounded by an articular capsule

Elastic cartilage covers the epiphyseal ends of articulating bones

Every synovial joint has a meniscus

• Question 40

0 out of 1 points

Which statement is true regarding the epiphyseal plates?

They are completely ossified by 5-10 years of age

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

Commonly found in the center of the metaphysis of long bones

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

• Question 41

1 out of 1 points

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

Eccrine gland

Ceruminous gland

Sebaceous gland

Apocrine gland

• Question 42

1 out of 1 points

Autosomal recessive traits and disorders are typically expressed in each generation.

True

False

• Question 43

1 out of 1 points

Which statement is true regarding articulations?

The cartilage found between two vertebrae is elastic cartilage

The wrist joint is classified as a synovial joint

The hip joint contains a meniscus which helps stabilizes the joint

The knee joint has six main ligaments that stabilize it

• Question 44

1 out of 1 points

Which statement is true regarding the hip?

It is less stable than the glenohumeral (shoulder) joint

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

It is one of the most commonly dislocated joints in the body

It is considered a syndesmosis joint

• Question 45

1 out of 1 points

The last step in bone fracture repair is the formation of the fibrocartilaginous callus.

True

False

• Question 46

1 out of 1 points

Which of the following muscles is considered a rotator cuff muscle?

Subscapularis

Teres major

Pectoralis major

Levator scapula

• Question 47

1 out of 1 points

Which statement is true regarding osteoarthritis?

It commonly occurs in younger individuals

Degenerative changes occur to the articular cartilage

The damage is usually reversible

It is an autoimmune disease

• Question 48

1 out of 1 points

Which statement best describes epimysium?

It is a protective connective tissue covering around a entire muscle

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

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

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

• Question 49

1 out of 1 points

Which type of skin cancer has the highest fatality rate?

Basal cell carcinoma

Squamous cell carcinoma

Keratinoma

Melanoma

• Question 50

1 out of 1 points

The majority of joints within the body are classified as:

Cartilaginous

Fibrous

Synovial

Synarthroses

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