MBLEx Exam Practice Quiz
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- 1.The skeletal system is composed of bones, cartilage, ligaments and joints.
- A.
True
- B.
False
- 2.The fibrous membrane covering bone that is the bone's life support system is called the intraosteum.
- A.
True
- B.
False
- 3.The two regions of the skeleton are the axial and the appendicular skeleton.
- A.
True
- B.
False
- 4.The bones of the skull, thorax, and vertebral column and the hyoid bone comprise the appendicular skeleton.
- A.
True
- B.
False
- 5.One of the functions of the skeletal system is to restore vital minerals.
- A.
True
- B.
False
- 6.The intercartilaginous ligament is a tough membrane that interconnects select bones, attaching to their periosteum.
- A.
True
- B.
False
- 7.
- A.
True
- B.
False
- 8.The two girdles in the axial skeleton are the shoulder girdle and the pelvic girdle.
- A.
True
- B.
False
- 9.The plane that divides the body into superior and inferior halves is the...
- A.
Midsagittal (median) plane
- B.
Frontal (coronal) plane
- C.
Transverse (horizontal) plane
- D.
Sagittal plane
- 10.The plane that divides the body into anterior and posterior halves is the...
- A.
Midsagittal (median) plane
- B.
Frontal (coronal) plane
- C.
Tranverse (horizontal) plane
- D.
Sagittal plane
- 11.If you were to assume the anatomical position, you would do which of the following?
- A.
Lie face down with both feet hip distance apart, toes pointing downward
- B.
Lie flat on your back, with the palms of your hands flat on the floor and your head looking over your right shoulder
- C.
Stand erect and face forward, with your palms facing forward with the thumbs to the side, and your feet about hip distance apart with toes pointing forward
- D.
Stand erect and face forward, with your palms facing each other and feet about hip distance apart with the toes pointing to the side
- 12.Which of the following is in the proper order from least complex to most complex?
- A.
Cells, tissues, membranes, organs, organ systems, organism
- B.
Cells, chemicals, organs, tissues, organ systems
- C.
Chemicals, cells, tissues, organs, organ systems, organism
- D.
Molecules, tissues, cells, organism
- 13.What is the fundamental unit of all living organisms?
- A.
Atom
- B.
Molecule
- C.
Tissue
- D.
Cell
- 14.Which of the following quadrants contains the liver?
- A.
Left lower quadrant
- B.
Left upper quadrant
- C.
Right lower quadrant
- D.
Right upper quadrant
- 15.When oriented away from the midline of the body, we refer to it as...
- A.
Lateral
- B.
Anterior
- C.
Posterior
- D.
Inferior
- 16.________ describes the armpit region. Blank is...
- A.
Axillary
- B.
Antebrachial
- C.
Brachial
- D.
Antecubital
- 17.The Greek root derm- means...
- A.
Skin
- B.
Follicles
- C.
Nails
- D.
Hair
- 18.Which of the following cells gives color to the skin and serves to decrease the amount of ultraviolet light that can penetrate into deeper layers of the skin?
- A.
Keratinocytes
- B.
Mesocytes
- C.
Astrocytes
- D.
Melanocytes
- 19.Which layer is known as the true skin?
- A.
Epidermis
- B.
Subdermis
- C.
Dermis
- D.
Hypodermis
- 20.Collagen and elastin are found in which layer of skin?
- A.
Epidermis
- B.
Dermis
- C.
Hypodermis
- D.
Mesodermis
- 21.Which are pouch-like structures in the skin from which hair grows?
- A.
Follicles
- B.
Indentions
- C.
Sacs
- D.
Cysts
- 22.What is another term used to describe the subcutaneous layer?
- A.
Epidermis
- B.
Hypodermis
- C.
Subdermis
- D.
Mesodermis
- 23.Which layer of skin contains blood vessels, many nerve receptors, hair follicles, and skin glands?
- A.
Epidermis
- B.
Mesodermis
- C.
Hypodermis
- D.
Dermis
- 24.Which receptors are often called the "cold receptors"?
- A.
Pacinian corpuscles
- B.
Ruffini end organs
- C.
Krause end bulbs
- D.
Meissner's corpuscles
- 25.Which skin region is relatively avascular?
- A.
Epidermis
- B.
Dermis
- C.
Hypodermis
- D.
Endodermis
- 26.The hollow space within the center of the diaphysis is...
- A.
Haversian canal
- B.
Volkman's canal
- C.
Periosteal cavity
- D.
Medullary cavity
- 27.What is the long cylindrical shaft of the bone?
- A.
Epiphysis
- B.
Diaphysis
- C.
Bony markings
- D.
Periosteum
- 28.What are the two ends of a long bone?
- A.
Epiphyses
- B.
Diaphyses
- C.
Surface markings
- D.
Periosteum
- 29.Minute vascular canals running longitudinally down the bone are the...
- A.
Volkman's canals
- B.
Periosteal cavities
- C.
Medullary cavities
- D.
Haversian canals
- 30.What is a meeting place for bones at which joint movement occurs?
- A.
Periosteum
- B.
Hemopoiesis
- C.
Diaphysis
- D.
Articulation
- 31.Small, round bones embedded in tendons are classified as which of the following categories?
- A.
Flat
- B.
Irregular
- C.
Short
- D.
Sesamoid
- 32.Which of the following systems of canals connects to Haversian canals and runs horizontally through bone?
- A.
Golgi canal
- B.
Volkman's canal
- C.
Osteal canal
- D.
Medullary canal
- 33.Freely movable joins are classified as...
- A.
Synarthrotic
- B.
Amphiarthrotic
- C.
Diarthrotic
- D.
Triarthrotic
- 34.Hip and shoulder joints are examples of synovial joints that offer the greates range of motion and are commonly know as...
- A.
Hinge joints
- B.
Pivot joints
- C.
Saddle joints
- D.
Ball and socket joints
- 35.Medial or inward rotation of the forearm is called...
- A.
Pronation
- B.
Inversion
- C.
Supination
- D.
Eversion
- 36.Flexion of the foot dorsally so that the toes are moving toward the shin is called...
- A.
Plantarflexion
- B.
Dorsiflexion
- C.
Inversion
- D.
Eversion
- 37.
- A.
Eversion
- B.
Circumduction
- C.
Inversion
- D.
Rotation
- 38.Circular movemnt created when a bone moves around its own central axis is called...
- A.
Rotation
- B.
Protraction
- C.
Circumduction
- D.
Retraction
- 39.The sarcoplasmic reticulum stores and releases which ion?
- A.
Phosphorus
- B.
Potassium
- C.
Sodium
- D.
Calcium
- 40.Which of the following is the term used to describe the opposing muscle that relaxes and stretches or eccentrically contracts to allow the actions of the agonists to occur?
- A.
Agonist
- B.
Synergist
- C.
Antagonist
- D.
Fixator
- 41.What is the theory that explains how filaments within the sarcomere slide past each other in order to create a change in muscle length?
- A.
Gliding filament theory
- B.
Sliding theory of contraction
- C.
Telescoping theory
- D.
Sliding filament theory
- 42.Which of the following is the thin myofilament?
- A.
Actin
- B.
Epimysium
- C.
Myosin
- D.
Fasciculi
- 43.Which is a skeletal muscle's contractile unit?
- A.
Fasciculi
- B.
Sarcomere
- C.
Perimysium
- D.
Retinacula
- 44.Which is the fascial covering of the entire muscle?
- A.
Perimysium
- B.
Epimysium
- C.
Endomysium
- D.
Aponeurosis
- 45.Which of the following is the thick myofilament?
- A.
Actin
- B.
Fasciculi
- C.
Myofascial
- D.
Myosin
- 46.Which are the two ends of a sarcomere?
- A.
A-bands
- B.
Z-lines
- C.
S-lines
- D.
H-bands
- 47.What percentage of blood is plasma?
- A.
30%
- B.
45%
- C.
55%
- D.
70%
- 48.
- A.
It is warmer than the rest of the body
- B.
Viscous fluid that is thicker and more adhesive than water
- C.
Color varies from bright scarlet to dull maroon
- D.
PH is slightly acid
- 49.Which ABO blood type is called the universal recipient?
- A.
Type AB
- B.
Type O
- C.
Type A
- D.
Type B
- 50.Which ABO blood type is called the universal donor?
- A.
Type AB
- B.
Type O
- C.
Type A
- D.
Type B
- 51.Which of the following are the superior hollow heart chambers?
- A.
Atria
- B.
Ventricles
- C.
Bladders
- D.
Papilla
- 52.
- A.
In the liver and the spleen
- B.
In the hepatic portal system
- C.
In the red bone marrow of long, flat, and irregular bones
- D.
In the aorta
- 53.Which valve lies between the left ventricle and the aorta?
- A.
Tricuspid valve
- B.
Aortic semilunar valve
- C.
Pulmonary semilunar valve
- D.
Bicuspid valve
- 54.Which of the following is the left atrioventricular valve, also called the mitral valve?
- A.
Tricuspid valve
- B.
Pulmonary semilunar valve
- C.
Tricycle valve
- D.
Bicuspid valve
- 55.Which of the following best describes the amount of blood ejected from the left ventricle during each contraction?
- A.
Blood pressure
- B.
Stroke volume
- C.
Pulse
- D.
Hemostasis
- 56.What is the acronym used to denote the number of ventricular contractions per minute?
- A.
HBP
- B.
BPM
- C.
DJD
- D.
COM
- 57.Which of the following represents a normal blood pressure reading for adults?
- A.
80/120 mm Hg
- B.
120/80 mm Hg
- C.
139/94 mm Hg
- D.
140/95 mm Hg
- 58.Which is the only artery that transports deoxygenated blood?
- A.
Coronary
- B.
Mesenteric
- C.
Pulmonary
- D.
Splenic
- 59.What is a synonym for windpipe?
- A.
Trachea
- B.
Pharynx
- C.
Larynx
- D.
Epiglottis
- 60.What are the main organs of respiration?
- A.
Intercostals
- B.
Nostrils
- C.
Bronchi
- D.
Lungs
- 61.Which of the following are tiny sacs attached to alveolar ducts?
- A.
Epiglotis
- B.
Meatus
- C.
Alveoli
- D.
Bronchioles
- 62.Where are the vocal cords located?
- A.
Trachea
- B.
Pharynx
- C.
Larynx
- D.
Epiglottis
- 63.Olfaction refers to which sense?
- A.
Taste
- B.
Vision
- C.
Hearing
- D.
Smell
- 64.Which cells produce mocus?
- A.
Lacteals
- B.
Goblet cells
- C.
Peyer's patches
- D.
Mucosal tonsils
- 65.What is the port of entry for air as well as the beginning of the air conduction pathway?
- A.
Chest cavity
- B.
Lungs
- C.
Oropharynx
- D.
Nose
- 66.Which of the following is referred to as the guardian of the airways?
- A.
Trachea
- B.
Epiglottis
- C.
Pharynx
- D.
Larynx
- 67.What is a synonym for throat?
- A.
Trachea
- B.
Epiglottis
- C.
Larynx
- D.
Pharynx
- 68.Which of the following is the process by which products of digestion move into the bloodstream or lymph vessels, then into the body's cells?
- A.
Ingestion
- B.
Digestion
- C.
Absorption
- D.
Incorporation
- 69.What is the process of orally taking materials into the body such as food, liquids, and oral medications?
- A.
Ingestion
- B.
Intake
- C.
Digestion
- D.
Absorption
- 70.What is the process of eliminating indigestible or unabsorbed material from the body?
- A.
Digestion
- B.
Eradication
- C.
Purging
- D.
Defecation
- 71.Which of the following best describes a muscular ring used to regulate movement of materials from one compartment of the gastrointestinal tract to another?
- A.
Orbicularis gius
- B.
Sphincter
- C.
Rugae
- D.
Villi
- 72.Movements that mix and propel food through the alimentary canal are called...
- A.
Peristaltic
- B.
Dynamic
- C.
Tonic
- D.
Isometric
- 73.What is a ball-like, masticated lump of food once swallowed?
- A.
Mastastocyte
- B.
Wadous
- C.
Bolus
- D.
Chyme
- 74.The oral cavity includes which of the following groups?
- A.
Tongue, oropharynx, esophagus
- B.
Tongue, teeth, gums, opening of the salivary ducts
- C.
Duodenum, jejunum, ileum
- D.
Tongue, teeth, opening of the sinuses
- 75.What is a synonym for the word chewing?
- A.
Peristalsis
- B.
Mastication
- C.
Ingestion
- D.
Deglutition
- 76.What is the muscular tube that connects the pharynx to the stomach by piercing the diaphragm?
- A.
Duodenum
- B.
Trachea
- C.
Esophagus
- D.
Ileum
- 77.Which of the following is a J-shaped organ bound at bond ends by sphincters?
- A.
Pancreas
- B.
Stomach
- C.
Duodenum
- D.
Gallbladder
- 78.What is found at the junction between the esophagus and stomach?
- A.
Cardioesophageal sphincter
- B.
Ileocecal sphincter
- C.
Sphincter of Oddi
- D.
Pyloric sphincter
- 79.Which is the first section of the small intestines?
- A.
Duodenum
- B.
Esophagus
- C.
Jejunum
- D.
Ileum
- 80.What is suspended from the inferior portion os the cecum?
- A.
Taenia coli
- B.
Vermiform appendix
- C.
Kupffer's cells
- D.
Sinusoids
- 81.Which portion of the colon continues from the cecum up the lower right abdomen?
- A.
Ascending colon
- B.
Sigmoid colon
- C.
Transverse colon
- D.
Descending colon
- 82.Which of the following is the main muscle of respiration?
- A.
Intercostals
- B.
Scalenes
- C.
Respiratory diaphragm
- D.
Abdominals
- 83.Muscle cell shaped like "Y" of "H"
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 84.Muscle cell that is multinucleated
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 85.Muscle cell adapted for long, sustained contractions
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 86.Muscle cell which its many nuclei are located near the periphery of the cell
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 87.The shape of this muscle cell allows them to fit together and create the spherical shape of a hollow organ
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 88.Also referred to as visceral muscle
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 89.
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 90.Muscle cell that contains bands of red and white material, causing it to appear striated
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 91.Muscle cell that forms the walls of hollow organs and tubes, such as the stomach, bladder, uterus, and blood vessels.
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 92.Muscle cell located in the heart wall
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 93.Muscle cell that consumes very little energy
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 94.Muscle cell that is also known as voluntary muscle or striated
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 95.Muscle cell that contain intercalated disks between each muscle cell
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 96.Muscle cell that is spindle shaped (pointed at both ends)
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 97.Muscle cell that contains one oval-shaped nucleus
- A.
Smooth muscle
- B.
Skeletal muscle
- C.
Cardiac muscle
- 98.Respiration that occurs in the lungs
- A.
External respiration
- B.
Internal respiration
- 99.Respiration in which carbon dioxide diffuses from the cells into the bloodstream
- A.
External respiration
- B.
Internal respiration
- 100.Respiration that is also referred to as pulmonary respiration
- A.
External respiration
- B.
Internal respiration
- 101.Respiration in which oxygen diffuses from the air inside the alveoli across the alveolar walls into the blood capillaries
- A.
External respiration
- B.
Internal respiration
- 102.Respiration in which gas exchange between the blood and the air in the alveoli take place
- A.
External respiration
- B.
Internal respiration
- 103.Respiration in which oxygen diffuses from the blood into the cells
- A.
External respiration
- B.
Internal respiration
- 104.Respiration that occurs between blood and body tissues
- A.
External respiration
- B.
Internal respiration
- 105.
- A.
External respiration
- B.
Internal respiration
- 106.Respiration that is also referred to as tissue respiration
- A.
External respiration
- B.
Internal respiration
- 107.Receives blood from all parts of the body except the lungs
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 108.Delivers blood to the right ventricle
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 109.Contains the thickest heart wall
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 110.Receives blood from the right atrium
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 111.Receives blood from the pulmonary veins
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 112.Pumps blood through the pulmonary trunk and into the pulmonary arteries
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 113.Receives blood from the superior and inferior vena canae and the coronary sinus
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 114.Pumps blood into the aorta
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
- 115.Delivers blood into the left ventricle
- A.
Right atrium
- B.
Left atrium
- C.
Right ventricle
- D.
Left ventricle
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