BSC2346 2019 January Module 5 Midterm Quiz Latest

BSC2346 Human Anatomy and Physiology I
Module 05 Midterm Exam
Question 1
Wolff’s law of bone states that bone density is directly related to the dietary ingestion of calcium.
Answers:            
True
 False
Question 2
Which statement is true regarding osteoporosis?
Answers:            
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
Osmosis is the movement of random molecules from a low to high concentration across a selectively permeable membrane.
Answers:            
True
 False
Question 4
Acetylcholine molecules must bind to troponin in order for the muscle contraction process to occur.
Answers:            
True
 False
Question 5
Which statement is true of the glenohumeral (shoulder) joint?
Answers:            
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
A motor unit is composed of all the muscle fibers that one motor neuron innervates.
Answers:            
 True
False
Question 7
Which choice is true regarding bone tissue?
Answers:            
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
Parathyroid hormone will cause an increase activity in which of the following cells?
Answers:            
 Osteoclasts
Osteoblasts
Osteocytes
Osteogenic cells
Question 9
Which of the following choices contains ridges that are ultimately responsible for fingerprints?
Answers:            
Flexure lines
 Dermal papillae
Friction ridges
Reticular layer
Question 10
Which cellular organelle is responsible for the production of ATP?
Answers:            
 Mitochondria
Lysosome
Gogli
apparatus
Nucleus
Question 11
Which statement is true of muscular tissue and/or muscle contraction?
Answers:            
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
Which of the following composes the majority of the epidermis?
Answers:            
Melanocytes
 Keratinocytes
Basal cells
Osteocytes
Question 13
A bursa can reduce the friction of a tendon rubbing over a bone.
Answers:            
 True
False
Question 14
Which statement is true regarding muscles?
Answers:            
 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
Aerobic respiration creates lactic acid as a byproduct but produces far more ATP than anaerobic respiration.
Answers:            
True
 False
Question 16
Which statement is true regarding the skeletal system?
Answers:            
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
Which of the following protein molecules provides the binding site for the myosin heads?
Answers:            
Tropomyosin
 Actin
Troponin
Myofilament
Question 18
Which of the following is found in the dermis layer of skin?
Answers:            
Subcutaneous fat
 Elastic fibers
Granulosum layer
Melanin
Question 19
Which statement is true of articulations (joints)?
Answers:            
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
The process of detaching the thick filament from the thin filament during muscle relaxation requires ATP.           
Answers:            
 True
False
Question 21
Which choice is true regarding myoglobin?
Answers:            
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
Which of the following statements is true of a synovial joint?
Answers:            
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
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.
Answers:            
Nervous tissue
Muscular tissue
Connective tissue
 Epithelial tissue
Question 24
A strain occurs when there is damage to:
Answers:            
Ligaments
 Tendons
Synovial sheaths
Articular cartilage
Question 25
Which statement is true of articulations (joints)?
Answers:            
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
DNA is stored in which cellular organelle?
Answers:            
Gogli apparatus
Smooth endoplasmic reticulum
Mitochondria
 Nucleus
Question 27
Which statement is true of the epiphyseal plates of bones?
Answers:            
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
Hematopoiesis is a primary function of the muscular system.
Answers:            
True
 False
Question 29
Which choice best describes the function of the Haversian (central) canals within bone?
Answers:            
 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
Increasing intensity of contractions during labor is an example of negative feedback.
Selected Answer:           
 False
Answers:            
True
 False
Question 31
The arrangement of the fascicles in a muscle influences the direction a muscle will contract.
Answers:            
 True
False
Question 32
Enzymes are used to speed up chemical reactions within the body.
Answers:            
 True
False
Question 33
Skin cancer originates in the dermis of the skin.
Answers:            
True
 False
Question 34
A ligament connects a muscle to a bone, while a tendon stabilizes a joint by connecting or joining one bone to another.
Answers:            
True
 False
Question 35
Which of the following is a function of the integument system?
Answers:            
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
Which of the choices is true regarding muscle contraction?
Answers:            
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
Which bone cell is responsible for breaking down bone tissue?
Answers:            
Osteocyte
Osteoblast
Osteogenic
 Osteoclast
Question 38
The organic components of the extracellular matrix space include collagen fibers.
Answers:            
 True
False
Question 39
Which statement is true regarding synovial joints?
Answers:            
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
Which statement is true regarding the epiphyseal plates?
Answers:            
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
 
 
                This type of gland secretes an oily secretion that helps lubricate and keeps the skin and hair from becoming dry and brittle?
Answers:            
Eccrine gland
Ceruminous gland
 Sebaceous gland
Apocrine gland
Question 42
 
 
                Autosomal recessive traits and disorders are typically expressed in each generation.
Selected Answer:           
 False
Answers:            
True
 False
Question 43
 
 
                Which statement is true regarding articulations?
Answers:            
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
Which statement is true regarding the hip?
Answers:            
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
The last step in bone fracture repair is the formation of the fibrocartilaginous callus.
Answers:            
True
 False
Question 46
Which of the following muscles is considered a rotator cuff muscle?
Answers:            
 Subscapularis
Teres major
Pectoralis major
Levator scapula
Question 47
Which statement is true regarding osteoarthritis?
Answers:            
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
Which statement best describes epimysium?
Answers:            
 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
Which type of skin cancer has the highest fatality rate?
Answers:            
Basal cell carcinoma
Squamous cell carcinoma
Keratinoma
 Melanoma
Question 50
The majority of joints within the body are classified as:
Answers:            
Cartilaginous
Fibrous
 Synovial
Synarthroses