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ST test #5
Terms in this set (175)
Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons.
The special type of cellular division that produces the sex cells is called mitosis
The epiglottis is a large piece of cartilage that covers the glottis when we swallow.
Endocrine glands have ducts.
Psoriasis is a common chronic skin disorder that is characterized by red patches covered by thick, dry, and silvery scales.
The formation of a female egg is called oogenesis.
The cornea is the transparent part of the outermost layer of the eye.
Memory cells are descendants of activated T and B cells produced during an initial immune response.
Fermentation in yeast cells is a type of aerobic respiration.
During a vasectomy, the physician cuts or cauterizes the spermatic cord.
As long as one-third of one kidney is functional, a person can survive.
An unmyelinated nerve fiber conducts an impulse over its entire length with a slower rate of conduction than that of a myelinated fiber.
The three types of loose connective tissue are areolar, adipose, and reticular.
The medulla oblongata contains all the ascending and descending tracts that connect the spinal cord and various parts of the brain.
Melanocytes produce the pigment keratin.
false (they produce melanin)
Digestion allows the body's cells to convert food energy into the high-energy ATP molecules that run the cell's machinery.
Tendons are tough connective tissue structures that attach bones to bones.
false (muscle to bone)
Negative feedback occurs when the increasing blood level of a hormone inhibits its continued secretion from its source endocrine gland.
When external temperatures increase, blood vessels in the dermis dilate to bring more blood flow to the surface of the body.
The two purine nitrogen bases are adenine and guanine.
Plasma accounts for about 55% of blood.
The outermost layer of the pericardial sac is the serous pericardium.
false (parietal pericardium)
Forensic scientists analyze tissues looking for clues that help solve crimes.
When lifting a weight, muscles become shorter and thicker but the tone or tension remains the same and is referred to as isometric contraction.
false (isometric refers to muscle relaxed)
Hemoglobin has five iron atoms that combine with oxygen gas in the lungs.
false (4 iron atoms)
The process of manufacturing blood cells is called hematopoiesis.
Each efferent arteriole takes blood from the renal artery to Bowman's glomerular capsule.
false (should be afferent arteriole)
Simple epithelium is several layers thick.
false (only one layer)
An example of an amphiarthrosis (a type of continuous, slightly movable joint) is a symphysis. (process of growing together)
The parasympathetic division of the autonomic nervous system stimulates the body's vegetative activities such as digestion, urination, and defecation.
The special kind of cellular reproduction that occurs only in gametes is known as mitosis.
Epinephrine and norepinephrine are commonly referred to as the fight-or-flight hormones.
Because the eleventh and twelfth pairs of ribs do not attach anteriorly, they are called floating ribs.
Lymphatic capillaries are much smaller and less permeable than blood capillaries.
false (lymphatic is larger)
Sweat glands produce sebum.
Synarthroses are freely moving joints or articulations.
The first nerve cell receiving an impulse directly from a receptor is called a motor or efferent neuron.
Over 60% of all brain cells are nerons.
false (cerebral cortex holds 19%)
Sickle-cell anemia is a hereditary disease in which leukocytes have an abnormal sickle shape due to abnormal hemoglobin.
false (red blood cells aren't healthy enough to carry oxygen throughout the body.)
Gingivitis is an inflammation of the tissues of the gum.
There are four types of muscle in the human body.
False (3 types: cardiac, smooth, skeleton)
The bones of the wrist are called tarsals.
false (carpals; tarsals are the toes)
The trachea is a passageway for both air and food.
False (just air)
The prostate gland, penis, and urethra belong to the male reproductive system.
The study of tissue is called cytology
false (histology; cytology= study and function of plant and animal cells)
The organs of any cavity are referred to as the viscera.
The pulmonary semilunar valve is found in the right ventricle.
Total lung capacity is the maximum volume of air that can be expelled at the normal rate of exhalation after a maximum inspiration.
false (maximum efforts of inhalation)
Temperature has no effect on diffusion rate.
The exocrine glands are ductless glands that secrete hormone directly into the bloodstream.
false (secrete substances onto an epithelial surface by way of a duct)
Eukaryotic cells do not have membrane-bound organelles
Leukemia is a disorder of the lymphatic system tissue that can be treated by a bone marrow transplant.
Cells arise only from preexisting cells through the process of cell division.
The thalamus plays a major role in controlling secretions from the pituitary gland.
false (sensory and motor signals, as well as regulation of consciousness and alertness)
The pharyngeal tonsils are the ones commonly removed in a tonsillectomy.
False (palatine tonsils)
Atoms that gain electrons become negatively charged.
The cerebellum controls intellectual processes and emotions.
false (voluntary movements; posture, balance, coordination and speech)
The perineum is a diamond-shaped area at the inferior end of the trunk between the buttocks and thighs of both males and females.
The movable attachment, where the effects of muscle contraction are seen, is called the origin.
Thrush is caused by inflammation and enlargement of rectal veins.
Thrombin forms the threads of blood clot, which enmesh the blood cells and platelets seeping from the wound.
The smallest unit of life is the cell.
There are 14 thoracic vertebrae. T/F
Animal cells are surrounded by a semirigid covering called the cell wall.
false (surrounded by a plasma membrane)
The Cowper's gland surround the superior portion of the urethra in males.
false (located posterolateral to the membranous urethra)
Anabolism is an energy-requiring process that builds larger molecules by combining smaller molecules.
In performing any given movement, the muscles performing the actual movement are called the prime movers or agonists.
A lowering of blood pH is called acidosis.
Cystic fibrosis is caused by excessive exposure to asbestos, silica, or coal dust.
false (change, or mutation, in a gene called CFTR (cystic fibrosis transmembrane conductance regulator))
Pronation is a term used to describe movement of the jaw.
First-degree burns only damage the epidermis.
The somatic nervous system regulates the functions of internal organs by controlling glands, smooth muscles, and cardiac muscle.
false (autonomic; somatic controls voluntary muscle movements connected to the skeletal bones.)
The left ventricle has walls that are thicker than the right ventricle.
An element is a substance whose atoms all contain the same number of neutrons.
false (same number of protons)
The head of a mature sperm contains the genetic material and an acrosome.
The skin receives approximately ___ of all the blood circulating through the body.
Channels within the endoplasmic reticulum are known as:
A ball-and-socket is an example of a(n) ___ joint.
Muscles that raise a part of the body are called:
Unwound strands of chromosomes visible as threads in the nucleoplasm are called:
Nerve fibers leave the eye as the optic nerve at the:
The ___ regulates the amount of light that enters through the diameter of the pupil.
A temporarily displaced bone from a joint is called a:
Which layer of the skin contains the only cells of the epidermis that are capable of dividing by mitosis?
Cardiac muscle is found only in the ____
Which tissue is characterized by an abundance of intercellular material called the matrix?
What term is used for the maintenance (within varying narrow limits) of the internal environment of the body?
The ___ is a long continuous tube that runs through the ventral cavity of the body.
Which bones are thin and typically found where there is a need for extensive muscle attachment or protection for soft or vital parts of the body?
The ___ vena cava brings blood from the upper parts of the body, the heart, neck, and arms to the heart.
A form of rheumatism that does not affect the joints is called:
Each ___ bone encloses an ear and bears a fossa for articulation with the lower jaw (mandible).
The ___ cells release a mixture of digestive enzymes, collectively called the pancreatic juice.
The second layer of the skin is the:
The ___ nerve is a motor nerve that controls tongue movements.
Vitamin ___ is necessary for vision, bone growth and maintenance of epithelial cells.
The ___ glands function to produce milk to nourish the newborn baby.
The interior of the shaft of long bone contains the ___.
Epithelial cells are anchored to each other and to underlying tissues by the ____ membrane.
What is the first step in the duplication of a DNA molecule?
nucleic acids are added
The eight front teeth are called:
Excessive thirst is called:
Blood poisoning is also known as:
Which layer of the skin is the deepest and most important layer of the epidermis?
Which type of joint is found only in the thumb?
Patients with ___ suffer from the destruction of the walls of the alveoli.
The largest organ in the body is the:
Clot retraction is called:
The ___ is the collective term for the female external genitalia.
The ___ is a small thin-walled tube that leads from the floor of the urinary bladder to the outside of the body.
A collapsed lung or reduction in the volume of a part of a lung is known as:
What type of epithelium is easily stretched and is found in the bladder?
What epithelial cells are flat and slightly irregular in shape?
Inadequate blood flow can cause an ___, an area of damaged cardiac tissue.
What are the smallest particles of an element?
Subcutaneous bursae are found under the:
All spinal nerves are ________ nerves.
In the lungs, the grapelike outpouchings of epithelium and elastic basement membrane surrounded externally by a capillary network are called:
Large organelles found mainly in plant cells that are the site of photosynthesis are known as:
Glucose is a simple:
Cords called the chordae ___ connect the pointed ends of the cusps of the AV valves to the papillary muscles.
The presence of ___ keeps blood from backflowing in the heart.
Red blood cells pick up ___ in the lungs, and transport it via the blood to all cells of the body.
The ___ system is the body's control center and communication network.
Nerve cells known as ___ transmit nerve impulses in the form of electrochemical changes.
The common cold is a contagious infection of the upper respiratory tract caused by a form of the ____.
The thoracic duct ultimately empties all of its lymph into the left ___ vein.
The ___ bone is the strongest and longest bone of the face and forms of the lower jaw.
The ___ glands in the mucous membrane lining the mouth secrete small amounts of saliva.
The secretory cells of the lungs are affected in patients with:
Which type of movement lowers a part of the body?
Which structures are found in the walls of the small intestine where their macrophages destroy bacteria?
The muscle we develop when we do sit-ups is the:
The indentation of the cell membrane during cytokinesis is called a:
Sister chromatids are attached to one another at the:
The posterior compartment of the eye is filled with the ___ humor.
The serious decrease in the number of thrombocytes or blood platelets is a condition known as:
A flat, small discoloration of the skin that is even with the skin surface is known as a:
The ___ ducts empty urine into the renal pelvis.
The uterine wall is composed of three tissue layers; the middle layer is called the:
Clotting in an unbroken blood vessel is called
Cells that are responsible for producing skin color are called:
A red blood cell that is placed in a hypotonic solution will:
The vestibule and the ___ function in the maintenance of balance (equilibrium).
The common disorder ___ is caused by a deficiency in insulin production.
Inadequate amounts of iodine in the diet leads to an enlarged thyroid gland, known as a(n):
A ____ epithelium has several layers of epithelial cells thick.
Smoking increases ___ levels in the blood, this increasing the possibility of unwanted clotting.
The lungs and heart are located in the ____ cavity.
Cancer-causing agents are called:
Mast cells produce which inflammatory substance in response to allergies?
The oropharynx, has only one opening, the ____, which connects with the moth.
The brain is located in the ___ cavity.
The stratum ____ is commonly called the clear layer.
Microscopic vessels composed of simple squamous epithelial cells are called:
Which amphiarthrotic joints are characterized by two bony surfaces connected by hyaline cartilage?
The function of the ___ is to transport urine from the renal pelvis to the urinary bladder.
The middle of the three spinal meninges is called the ___ mater.
The coronary arteries supply blood to the:
Which joints do not allow movement?
Alveolar ducts are also called:
Sodium-potassium pumps restore the resting membrane potential following an action potential, a process known as:
The ___ produces the female steroid sex hormones estrogen and progesterone.
The network of ducts in the testis is called the ___ testis.
Efferent lymphatics exit the lymph node at the ____, a slight depression on one side.
A ___ is an abnormal heart sound akin to a fluttering or a humming sound.
The ____ tube transports the ova from the ovaries to the uterus.
A ___ is the surgical removal of a protruding disk.
The ___ trunk drains the head and neck.
Terminal bronchioles subdivide into microscopic branches called _____ bronchioles.
The term for the formation of bone is called:
Which process occurs when water is used to break down larger molecules?
Overproduction of thyroid hormone results in:
Which condition is caused by human papillomavirus?
The ovarian cycle is stimulated when the anterior pituitary secretes:
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