BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 40, Problem 13RQ
Card io myocytes are similar to skeletal muscle because:
- they beat involuntarily
- they are used for weight lifting
- they pulse rhythmically
- they are striated
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Chapter 40 Solutions
BIOLOGY 2E
Ch. 40 - Figure 40.10 Which of the following statements...Ch. 40 - Figure 40.11 Which of the following statements...Ch. 40 - Figure 40.17 Varicose veins are veins that become...Ch. 40 - Why are open circulatory systems advantageous to...Ch. 40 - Some animals use diffusion instead of a...Ch. 40 - Blood flow that is directed through the lungs and...Ch. 40 - White blood cells: can be classified as...Ch. 40 - Platelet plug formation occurs at which point?...Ch. 40 - In humans, the plasma comprises what percentage of...Ch. 40 - The red blood cells of birds differ from mammalian...
Ch. 40 - The heart's internal pacemaker beats by: an...Ch. 40 - During the systolic phase of the cardiac cycle,...Ch. 40 - Card io myocytes are similar to skeletal muscle...Ch. 40 - How do arteries differ from veins? Arteries have...Ch. 40 - High blood pressure would be a result of...Ch. 40 - Describe a closed circulatory systemCh. 40 - Describe systemic circulationCh. 40 - IS. Describe the cause of different blood type...Ch. 40 - List some of the functions of blood in the body.Ch. 40 - How does the lymphatic system work with blood...Ch. 40 - Describe the cardiac cycleCh. 40 - What happens in capillaries?Ch. 40 - How does blood pressure change during heavy...
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- Cardiac muscle is different from smooth muscle in that cardiac muscle is: acted on by the autonomic nervous system often interconnected by gap junctions under involuntary control O arranged in sarcomeresarrow_forwardplatelets globulins fibrinogen erythrocytes leukocytes connective plasma fibrinogen coagulation albumin men women formed elements Blood is a tissue that consists of formed elements and an extracellular matrix called The formed elements include red and white blood cells, and cell fragments called Plasma: The fibers of the extracellular matrix are actually fiber precursor molecules called Plasma consists of water, protein, nutrients, electrolytes, wastes, hormones, and gases. Plasma contains a multitude of proteins. However, three proteins predominate. contributes towards blood viscosity and helps transport lipophilic substances in the blood. , otherwise known as antibodies, help combat specific pathogens. Finally, upon activation, fibrinogen forms fibers during the process of are cells and cell fragments found in the blood. serve to transport gases in the blood. are blood cells of the immune system that combat pathogens. are cell fragments that assist in the process of blood clot…arrow_forwardWhat is the role of Ca2+ in the shape and duration of an action potential. (Cardiac muscle cell)arrow_forward
- Decreasing vascular or decreasing cardiac will decrease blood pressure. Dilation; contractions Diameter; output Constriction; relaxation Resistance; output Previousarrow_forwardCardiomyocytes are similar to skeletal muscle because: a. they beat involuntarily b. they are used for weight lifting c. they pulse rhythmically d. they are striatedarrow_forwardExplain the role of MAP in causing blood flowarrow_forward
- Why is the gap junctions between heart muscle cells play a relevant role in producing a regular heartbeat?arrow_forwardWhich type of cells allow cardiac muscles to act as a unit? Group of answer choices Autoplasmic cells Autoimmune cells Automotor cells Autorhythmic cellsarrow_forwardThe heart would develop normally; the ECM composition does not affect cardiomyocyte differentiation or contraction The ECM surrounding these cardiomyocytes would become more rigid, allowing for less contractility The cardiomyocytes would no longer contract The developing cardiomyocytes would differentiate into contractile cardiomyocytes instead of pacemaker cardiomyocytes The cardiomyocytes would form a squamous epithelial layerarrow_forward
- The pace maker cells of the heart are made of? leukocytes facia myocardial cells epithelial cellsarrow_forwardIn a sheet of ventricular cardiac muscle tissue, we should be able to observe electricity spreading between adjacent muscle cells (TRUE or FALSE) and from Purkinje fibers to muscle cells (TRUE or FALSE) via electrical synapses that form between the cell membranes.arrow_forwardDuring the late phases (plateau) of the action potential of fast myocardium (e.g. ventricle) which is not true of the sodium channel? OA. Defects in inactivation can prolong the action potential and lead to long QT syndrome. OB. It is refractory. OC.A slower inactivation gate keeps the channel shut in response to sustained depolarization. OD. It fires transiently early on in the action potential and is not active during the late plateau. O E. All are true.arrow_forward
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