The heart has an intrinsic beat that is initiated by which of the following?
Front
Sinoatrial node
Back
What are chemical messengers that control growth, differentiation,and the metabolism of specific target cells called?
Front
Hormones
Back
All the nutrients that enter the hepatic portal vein are routed where for decontamination?
Front
Liver
Back
Which tissue serves as the framework of the body by providing support and structure for the organs?
Front
Connective
Back
Motor or _____ neurons transmit nerve impulses away from the CNS.
Front
Efferent
Back
In men, spermatozoa develop within the ________ of the testis
Front
Seminiferous tubules
Back
The stomach muscle churns and mixes the food, turning the mass into soupy substance called?
Front
Chyme
Back
What is the exchange of gases between the atmosphere and the blood through the alveoli called?
Front
External respiration
Back
In order for inhalation to occur, what must happen?
Front
Contraction of the diaphragm, which enlarges the chest cavity and draws air into the lungs.
Back
What is the basic unit of life and the building block of tissues and organs?
Front
Cell
Back
What is the function of aldosterone?
Front
It conserves sodium in the body.
Back
A tissue examined under the microscope exhibits the following characteristics: cells found on internal surface of stomach, no extracellular matrix, cells tall and thin, no blood vessels in the tissue.
What type of tissue is this?
Front
Epithelial
Back
Which of the following are functions of the skeletal system?
Front
Support the body, hemopoiesis, provide protection
Back
Which of the following is the blood vessels where exchanges take place between blood and the cells of the body
Front
Capillary
Back
Which type of cell division takes place in the gonads?
Front
Meiosis
Back
Which mineral is responsible for regulating fluid in the body?
Front
Magnesium
Back
Most of the carbon dioxide in the blood does what?
Front
It is converted to bicarbonate ions.
Back
What separates the thoracic cavity from the abdominal cavity?
Front
Diaphragm
Back
The orthopedic surgeon informs you that you have broken the middle region of the humerus.
What is he describing?
Front
Diaphysis
Back
Jeffery has contracted bulbar poliomyelitis, and it has affected the medulla oblongata. The doctors warned the family that his condition is grave and death may be imminent. What functions of the medulla oblongata have warranted such a dire prognosis?
Front
The medulla oblongata contains vital centers that control heart action, blood vessel diameter, and respiration.
Back
What mineral is responsible for muscle contractions?
Front
Calcium
Back
What does the parathyroid hormone regulate?
Front
Calcium
Back
In what area of the body would you expect to find and especially thick stratum corneum?
Front
Heel of the foot
Back
During pregnancy, what organ produces the hormones that maintain the endometrium and prepare the breasts for milk production?
Front
Placenta
Back
Where are the pressoreceptors and chemoreceptors (specialized sensory nerves that assist with the regulation of circulation and respiration) located?
Front
Carotid body
Back
You have been given a sample of tissue that has open spaces partially filled by an assemblage of needlelike structures.
What is the tissue?
Front
Spongy bone
Back
How does the trachea remain open like a hollow tube?
Front
Supporting cartilaginous rings keep it open.
Back
Which leukocytes are correctly matched with their function or description?
Front
Monocytes - become macrophages, lymphocytes - important in immune response, neurophils - phagocytize micro organisms.
Back
Which hormone initiates the preparation of the endometrium of the uterus for pregnancy?
Front
Estrogen
Back
What are the glands of the skin that produce a thin, watery secretion?
Front
Eccrine glands
Back
Which are the functional units of the kidney?
Front
Nephrons
Back
What are the two functions of the male and female sex organs?
Front
Production of gametes and production of hormones.
Back
The only moveable bone in the skull is?
Front
Mandible
Back
Which of the the following locations would the urinary bladder and internal reproductive organs be found?
Front
Pelvic cavity
Back
Testicular activity is under the control of which hormones?
Front
Both FSH and LH
Back
You have been given a sample of tissue that has pillar shaped cells arranged tightly together. The tissue you have is:
Front
Columnar epithelium
Back
Vasodilation and vasoconstriction result from which of the following ?
Front
Relaxation and contraction of the smooth muscle in the arterial wall.
Back
Skin aids in maintaining the calcium and phosphate levels of the body by participating in the production of which of the following?
Front
Vitamin D
Back
All actions of the nervous system depend on the transmission of nerve impulses over ______.