Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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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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- ______ muscle pulls on bones and _______ muscle regulates the diameter of blood vessels. a. Skeletal / cardiac b. Smooth / cardiac c. Skeletal / smooth d. Smooth / skeletalarrow_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_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_forward
- The pressure in the aorta changes throughout the cardiac cycle. During systole, as the heart contracts, the outflux of blood into the aorta causes an increase in pressure, whereas during diastole the pressure decreases as the heart relaxes. A simple model for the aortic pressure waveform is given by the Windkessel effect described by the image below. In this model, the heart is considered a pressure generating pump which is directly connected to an elastic compartment (the aorta), which in turn is connected to a rigid set of peripheral vessels (the hose of the firefighter). 5 Pump Heart Air Windkessel Elastic arteries In order to find the aortic pressure waveform from the Windkessel model, a mass balance formulation around the aorta must be formulated. Coming into the aorta from the heart we have the flowrate Q(t). According to conservation of mass, this inflow rate Q(t) must be equal to the outflow rate into the peripheral vessels and the change in volume of the aorta. To find these…arrow_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_forwardWhy is the gap junctions between heart muscle cells play a relevant role in producing a regular heartbeat?arrow_forward
- Which type of cells allow cardiac muscles to act as a unit? Group of answer choices Autoplasmic cells Autoimmune cells Automotor cells Autorhythmic cellsarrow_forwardThe 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_forward
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