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Cierra Austin
Human Physiology with lab 1-6
| Term | Definition |
|---|---|
| What is the concept that information may flow ahead to another process to trigger a change in anticipation of an event that will follow called? | feed-forward |
| What is the normal reading or range called? | set point |
| What term describes a signal traveling toward a particular center or point of reference? | afferent |
| Which level of control operates at the cell level, often using genes and enzymes to regulate cell function? | intracellular regulation |
| Extrinsic control usually involves which mode of regulation? | nervous and endocrine |
| If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? | Oxytocin would inhibit uterine contractions. |
| What is the term that means self-immunity? | autoimmunity |
| Where is the body’s thermostat located? | hypothalamus |
| What determines how a protein performs? | shape |
| Which term means “water loving” and applies to the phospholipid head? | hydrophilic |
| All proteins have which four elements? | carbon, oxygen, hydrogen, and nitrogen |
| What term is often used to describe certain arrangements of atoms attached to the carbon core of many organic molecules? | functional group |
| NaCl would move through the cell membrane in which direction? | Both into and out of the cell |
| During which stage of mitosis do the centrioles move to the opposite poles of the cell? | Prophase |
| What is the cell process in which microorganisms or other large particles are engulfed called? | phagocytosis. |
| What is the component that distinguishes one nucleotide from another? | nitrogen base |
| In the DNA molecule, what does a sequence of three base pairs form? | a codon |
| If red blood cells containing 10% solute are placed in a solution containing 10% solute, what will happen? | Water will move into and out of the cells at equal rates. |
| Which skin layer contains closely packed, clear cells that contain a gel-like substance called eleidin? | Stratum lucidum |
| Which skin layer is called the barrier area? | Stratum corneum |
| Which skin layer has cells that look prickly because of the desmosomes that join the cells together? | Stratum spinosum |
| Which cells of the skin act as a type of antigen-presenting cell in the skin? | Dendritic cells |
| In which skin layer does the process of keratinization begin? | Stratum granulosum |
| What is the gland responsible for the waxy secretion in the external ear canal? | ceruminous |
| Which cells of the skin are filled with a tough, fibrous protein and account for most of the epidermal cells of the skin? | Keratinocytes |
| Which structures are unique to the fetal skull and provide additional space for molding the head shape as the baby passes through the birth canal? | fontanels |
| What are the small cells that synthesize and secrete a specialized organic matrix called? | osteoblasts |
| What is the minimal level of stimulation required to cause a fiber to contract called? | threshold stimulus. |
| Which subtype of fibrous joints is found only in the skull? | suture |
| What is the contractile unit of a muscle cell called? | sarcomere |
| Which type of movement occurs between the carpal and tarsal bones and between the articular facets of adjoining spinal vertebrae? | gliding |
| What are the three phases of the twitch contraction? | latent period, contraction phase, and relaxation phase |
| The joints between the articulating surfaces of the vertebral processes are classified as what type of joint? | gliding |
| What are the four kinds of protein that make up myofilaments? | myosin, actin, tropomyosin, and troponin. |
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cierraa4737