Sample Physiology MCQs 1. Compound action potentials can be graded responses. True 2. The sciatic nerve contains axons of both afferent and efferent neurones. True 3. The absolute refractory period of an action potential is the period after an initial stimulus when it is impossible to evoke another action potential with a second stimulus. True 4. The refractory periods of individual axons are important as they dictate the maximal action potential firing rate of a neuron. True 5. Compound action
Premium Action potential Skeletal muscle Muscle
Hypovolemia- low blood volume-->. leads to low blood pressure 2. - zona fasciculata- glucocorticoids - cortisone‚ cortisol -resist stressors. -increase glucose in blood -increase protein synthesis : by releasing amino acids into blood -increase fatty acids in blood 3. -zona reticularis- secretes androgens : testosterone -in females: testosterone is responsible for muscle tone‚ sex drive Pathologies of adrenal cortex 1. -Addison’s
Premium Immune system Lymphatic system
2. FLNB in Skeletal Diseases Mutations in FLNB lead to various skeletal malformations‚ involving long bone‚ joints and vertebra. There were five FLNB-related skeletal disorders been reported so far‚ including spondylocarpotarsal synostosis (SCT)‚ Larsen syndrome‚ atelosteogenesis (AO)‚ boomerang dysplasia‚ and isolated congenital talipes equinovarus. (1) Spondylocarpotarsal synostosis syndrome (SCT‚ OMIM 272460) Spondylocarpotarsal synostosis syndrome was characterized by the following features:
Premium Mutation Zygosity
Human Anatomy and Physiology Anatomy - the study of the form or structure and arrangement of body parts and their relationships Physiology - the study of the functions of the body parts or structures and their relationships in maintaining life processes. Levels of Structural Organization The human body consists of levels of structural organization that are associated with one another. There are six levels of structural organization: I. chemical level - It is the simplest level and it includes
Premium Human anatomy Anatomy Organ
Chapter 10- Muscle Tissue Choose the best answer to each of the following questions. 1) How does muscle tissue contribute to homeostasis? A) by generating heat that helps maintain body temperature B) by moving materials through the body C) by pulling on bones to move the body D) A and B are correct. E) A‚ B and C are correct. 2) The primary function of muscle is A) conversion of chemical energy into mechanical energy. B) conversion of chemical energy into radiant energy. C) conversion
Premium Muscle Muscle contraction Skeletal muscle
Muscular System: Muscle Metabolism 1. List the three roles of ATP in muscle contraction: 1. _energizing the power stroke of the myosin cross bridge________________________ 2. _disconnecting the myosin head from the binding site on actin at the conclusion of a power stroke_________________ 3. _energizing the calcium ion pump; transporting calcium___________________ 2. The potential energy in ATP is released when the terminal high-energy bond is broken by a process called _hydrolysis________________________
Premium Adenosine triphosphate Metabolism Muscle
Gluteals are the group of muscles comprising of your buttocks. Out the four muscles in your buttocks‚ there are only 3 groups of muscle that can be found on your buttocks. These muscles are gluteus maximus‚ medius and minimus. The fourth group which is the smallest one is the tenor fasciae latae muscles that can be found in the anterior area of the body. Functioning together‚ the gluteal muscles handle most of the motions of the upper leg‚ which includes rotation of the thigh‚ and abduction and turning
Premium Knee Muscle Bone
BIO 143 HUMAN PHYSIOLOGY REVIEW SHEET TEST 5: FALL 2012 Chapter 23: Ventilation - Be able to list & briefly describe the 4 primary pressures that are associated with ventilation: Atmospheric Pressure‚ Intra-alveolar Pressure‚ Pleural Pressure‚ Transpulmonary Pressure. - What ix external and internal respiration? - Be familiar with why ventilation occurs (b/c of pressure gradients between alveoli and outside atm.)‚ that air moves down a pressure gradient (high to low pressure) and why
Premium Carbon dioxide Respiratory physiology Oxygen
of lab reports by providing this information in an editable file which can be sent to an instructor. Purpose What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. Exercise 1: Epithelial Tissue |
Premium Muscle Cardiac muscle Skeletal muscle
Worksheet Fill in the following tables: Type of Microscopy State of the Cell (live‚ dead‚ both) Limit of General steps for resolution sample preparation/ fixation Advantage of Technique Phase contrast light microscope Amplitude contrast microscope Optical tweezers Fluorescence/ Confocal Microscopy Transmission Electron Microscope (TEM) Scanning Electron Microscope (SEM) Scientist Robert Hooke Antonie van Leeuwenhoek Ernst Karl Abbe Fritz Zernike Shimomura‚ Chalfie‚ and Tsien Ernst Ruska Schleiden
Premium Cell Protein Endoplasmic reticulum