PHYSIOLOGY

ANATOMY AND PHYSIOLOGY TEST function of nervous system -Sensation -Integration -Reaction sensation Monitors changes/events occurring in and outside the body. Such changes are known as stimuli and the cells that monitor them are receptors. integration the parallel processing and interpretation of sensory information to determine the appropriate response reaction The activation of muscles or glands (typically via the release of neurotransmitters (NTs) central nervous system The br...

WVU PHYSIO 241 EXAM 7 3 ways to trigger hormone release 1. Neural Stimulation: ex. Neuroendocrine reflex 2. Hormonal Stimulation: A hormone stimulates release of another hormone 3. Humoral Stimulation: a substance in body fluid stimulates release of a hormone Negative Feedback output counteracts a change in input Positive Feedback amplifies initial effect of hormone Neuroendocrine Reflexes produce sudden increase in hormone secretion Diurnal Rhythms Hormone fluctuation over 2...

ANATOMY AND PHYSIOLOGY TEST REVIEW CNS contains brain and spinal cord PNS contains cranial and spinal nerves afferent sensory neurons going toward the brain efferent motor neurons going to muscles from brain astrocytes maintain blood-brain barrier; provide structural support Ependymal Cells regulate and produce cerebrospinal fluid Oligodendrocytes produce myelin sheaths rising is action potential skeletal system is divided into axial and appendicular axial is composed of ...

PHYSIOLOGY FINAL TEST Dehydration synthesis stringing monomers together (water is removed) Hydrolysis Process of separating polymers into monomers (water is added) Starch digestion starts on the mouth (via salivary amylase) protein digestion starts in the stomach

ANATOMY AND PHYSIOLOGY UNIT 1 TEST REVIEW homeostasis The body maintains stable internal conditions through feedback control mechanisms. Lymphatic/immune removes fluid from tissues, protects the body; destroys bacteria and tumor cells. endocrine controls the body with chemicals called hormones. skeletal provides muscle attachment cor movement; protects/supports body organs; sight of blood cell formation muscular moves limbs, allows facial expressions respiratory delivers oxygen...

MUSCLE PHYSIOLOGY TEST Skeletal Muscle Voluntary, striated muscle attached to bones multi nucleated Atrophy a decrease in muscle size due to disuse Hypertrophy excessive development of an organ or part Tendon end of muscles links muscle to bone Muscle contracts to produce movement Fascicle bundle of muscle fibers Muscle Fiber a single muscle cell Myofibril long structures inside muscle fibers made of sarcomeres Actin interacts with myosin for muscle contraction thin ...

PHYSIOLOGY TEST What happens to stroke volume during exercise as you increase you intensity from 20 to 40% of your VO2max? from 60 to 80%? As the intensity increases so does the SV because your body need more oxygen and nourishment - between 60-80 it will plateau What is the effect of body positioning on stroke volume and heart rate? Stroke volume during max exercise only slightly higher than supine stroke volume. What will the effect of a low blood pressure be on stroke volume? Why? ...

ANATOMY & PHYSIOLOGY PRACTISE TEST A cavity containing the heart, but not the lungs is the ________ cavity. Pericardial The study of external features, such as bony projections that serve as landmarks to locate deeper structures is called ________. Surface anatomy The study of the body's organization by areas (the approach used in most medical schools) is called ________. Regional Anatomy Which of the following is not part of the group? a. cubital b. volar c. plantar d. ole...

MERP PHYSIOLOGY TEST C. Adding proteins to the intracellular space. Which of the following changes would result in an increased electrical gradient for Na+ entering the cell? A. Adding Cl - to the extracellular space. B. Adding K+ to the intracellular space. C. Adding proteins to the intracellular space. D. Adding Na+ to the intracellular space. E. Adding PO4 - to the extracellular space. A doctor analyzing the heart rate response after a painful stimulus. Correct! This doctor is...

PHYSIOLOGY TEST What can be used as a kind of "molecular clock" to help determine how long ago a species diverged from a common ancestor? Comparison of DNA samples List the categories of how all animal life is arranged from most inclusive to most specific? Phylum, class, family, genus The word "morphology" refers to the structure and form of a body or body part Drosophila have been important for the study of genetics because of their _______ and their giant _______. sh...