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101 Cards in this Set

  • Front
  • Back
The lymphatic system is an open system which gathers liquid from body tissues as it seeps out at the capillaries and returns the fluid to the cardiovascular system?
True.
Adh is secreted via the rennin antiotensim angiotensin I-angiotensin II system.
False
Myocardium produces its own impulses at a pacemaker region.
True
Ventricles relax at diastole?
True
A voltage-gated ion channel will open or close if enough oxygen occupies the lungs and causes diffusion of nitrogen upon exhalation.
False
Sympathetic axons leave the top and bottom of the spinal cord.
True
Parasympathetic axons come off of the brain and lead to the top of the spinal cord.
False
A single neuron transits impulses away from the cell body.
False
Hormones from ductless glands do not need rceptors on organs or tissues in order ot cause and effect.
flase
Polypeptice hormones are composed of chains of amino acids that are between 500 and 1000 anino acids.
False
Any organ that secretes a hormone into the blood is part of the endocrine system.
True
Macrophages kill cells by engulfing the ones presenting the appropriate antigen.
True..
MHC proteins are found on all nucleated cells in the body, identifying it to the body as self.
True
Antibodies are produced by erythrocytes and coat cells which are killed by natural killer cells.
False
Erythrocytes contain hemoglobin and serve in oxygen transport.
True.
Baroreceptors respond to a change in which of the following?
Blood pressure
Which of the following are involved in blood clotting?
Thrombocytes.
Which of the following is more highly concentrated inside the cell?
Potassium(k+).
In which of the following does an impulse travel faster than one in continuos fashion?
Salator conduction
Which of the following glands are connected to epithelium by ducts?
Endocrine glands.
Which of the following produce specific antibodies?
Lymphocytes.
The vertebrate body includes a long tube that travels from one end to the other and is suspended within an internal body cavity called?
COELEM
Groups of cells similar in structure and function are organized into?
TISSUES
Are body structures composed of several different tissues grouped together into a structural and functional unit.
ORGANS
Include membranes that cover all body surfaces and glands.
epithelial tissues
Those glands that lose their connections with the epithelium frm which they were derived and secrete homones into the blood are called
ENDOCRINE GLANDS.
Are derived from mesoderm and occur in many different forms which pssoess abundant extracelluar material.
CONNECTIVE TISSUES
Fibroblasts secrete ____ and other fibrous proteins.
COLLAGEN
Bone cells, or ____ remain alive even though the extracellular matrix becomes hardened with crystals of calcium phosphate.
OSTEROCYES
Blood is classified as a connective tissue because it contains cells and abundant extracellular material , the fluid called
PLASMA
Provides for movement of the vetebrated body ad of materials within the body.
MUSCLE TISSUE
Are specialized cells that receive, produce and conduct electrical signals.
NEURONS
The body of humans and other mammals contains a cavity divided byh the diaphragm into thoreacic and
ADDOMINAL CAVITIES
Which of the following is not one of the principal kinds of tissues in vertebrates?
CARTILAGE
Which of the following are the fundamental emroyonic tissues called the germ layers?
ENDODERM MESODERM ECTODERM
The glands of vertebrate are derived from?
INVAGINATED EPITHELIUM
Calluses are produced with an increase in abrasion as the stratified squamous epithelial cells of the skin are deposited with and increasing amount of a wear- resistant protein called?
KERATIN
If the connection between the gland and the epithelial membrane is maintained as a duct, the gland is called?
EXOCRINE GLAND
Defensive cells are found in which connective tissue?
BLOOD
The characteristic that makes the muscle cells unique is the relative abundance and organization of?
ACTIN AND MYOSIN FIBERS.
Are the specialized cells to produce and conduct electrochemical impulses are called.
NEURONS
____ and ______ are both known as striated muscles.
SKELETAL AND CARDIAC
Bone cells are called?
OSTEOCYTES
Muscles are involuntary
CARDIAC AND SMOOTH
In addition to motor and sensory neurons the nerve tissue contains?
GLIAL CELLS
The nucleus of a neuron is contained in the.
CELL BODY
Transports cells and dissolved materials throughout the body.
CIRCULATORY
Removes foreign bodies from the bloodstream fights infection.
IMMUNE
Receives stimuli intergrates information and directs the body.
NERVOUS
Captures oxygen and exchange gases.
RESPIRATORY
Removes metabolic wastes from the bloodstream
URINARY
Invertebrate locomotion results from the contraction of muscles anchored to?
BONE
During muscle contraction calcium ions bind to?
TROPONIN.
The chemical released by somatic motor neurons in skeletal muscle contraction is?
ACETYLCHOLINE
Villi and microvilli are found in the?
small intestine
The production of bile salts to emulsify fates is performed in which organ?
LIVER.
The low ph of the stomach helps to?
DENAUTURES FOOD PROTEINS, MAKING IT EASIER TO DIGEST.
A series of sensory organs(cilia) that project into a canal beneath the surface of the skin which enables bony fish to detect motionless objects at a distance by the movement of h2o of the object (serves as hearing ) are known as ?
OSSIFICATION
_____ and ______Are the two critical steps on the path leading to the evolution of humans exhibited by hominids.
BISPEDALISM AND LAGER BRAIN
_____ were the first hominids to evolve.
AUSTRALOPITHECINES
Is not a function of the epithelium.
ATP PRODUCTION
Is a process in which amino acid and lactic acid are converted to glucose.
ABSORPTION
The strongly hydrochloric acid present in the denatures proteins and activated pepsin, a protein digesting enzyme.
Gastric Juice
Most digestion occurs in the first 25 c of the 6-meter length of the small intestine called.
DUODENUM
The mixture of partially digested food and gastric juice is called
CHYME
The epithelial wall of the small intestine is covered with tiny fingerlike projections called.
VILLI
Because of the hepatic portal vein, the _____ is the first organ to receive most of the products of digestion
LIVER
The products of fat digestion in the small intestine are reassemble into triglycerides by the intestinal epithelium before combining them with proteins to form.
CHYLOMICRONS
The pancreas secretes enzymes ______ that neutralizes HCI and hormones
BIRCARBONATE
In addition to producing _____ that aids in digestion the liver also regulates blood composition.
BILE
In horses, rodents and logomorths, the digestion of cellulose by microorganisms takes place in the
CECCUM
Is not a part of the gastrointestinal tract.
LARNX
The activities of the characteristics layered structured of the tubular gastrointestinal tract is regulated by nerves in certain regions located in the submuscosa. These regions are called?
PLEXUSES
All OF THE FOLLOWING ARE FUNCTIONS OF THE SKELETON?
SUPPORT AND PROTECITON, CALCUIM HOMEOSTASIS, LEVERS FOR THE FORCE OF SKELETAL MUSCLE CONTRACTION, BLOOD CELL FORMATION
MAMMALS CALLED RUMINANTS (COW) CONSUME GRASS AND OTHER VEGETATION, HAVE STOMACHS WITH MULTIPLE CHAMBERS WHERE BACTERIA AID IN THE DIGESTION OF?
CELLULOSE.
A SERIES OF SENSORY ORGANS (CILIA) THAT PROJECT INTO A CANAL BENEATH THE SURFACE OF THE SKIN WHICH ENABLES BONY FISH TO DETECT MOTIONLESS OBJECTS AT A DISTANCE BY THE MOVEMENT OF h2o OF THE OBJECT (SERVES AS HEARING) ARE KNOWN AS.?
A LATERAL LINE SYSTEM
Allelic changes in a population of organisms which leads to progressive changes form simple to complex based on natural selection is known as?
Micro evolution
Which agent of evolutionary change is the only one which produces adaptive changes which depend on the nature of the environment?
Selection
Certain bacteria are able to withstand environmental stress and resist desiccation and heat by forming?
Endosperms.
Bacteria are important in that they play a major positive role in each of the following area’s except?
Phage conversion
Archaea contains all of the following components except?
Peptidoglycan
Which of the followings key feature is pigmentation?
Algae
Which of the following moves by way of pseudopods?
Amoeba
Which of the following moves as a giant mass of protoplasm?
Plasmodia slime molds
Micro evolution is progressive changes in gene frequency?
True
Over exploitation
whales
Disruption of ecological relationships?
Black footed ferrets
Habitat loss and fragmentation?
prairie chickens
Antigen genes shuffled in ducks which are not affected by the virus
Influenza
Loss of genetic variation?
songbirds
Produces many commonly used antibiotics.
Actinomycetes
Line the digestive tracts of animals
enterobacteria
conjunctivitis
chlamydia trachomatius –
Transmitted by and insect vector
rickettsia typhi-
Normal floral oraginsm including e coli
enterobacteria
Rickettsias and chlamydias –
intracellular parasites
antibiotics producers
actinomycetes-
Pseudocolemates worms w/a gut tube open at both ends
nematode-
Bilaterally symmetrical acoelmates
Playthelmimthes –
centipedes
chilopoda
Function as fangs or pincers
chelicerae.