1 / 9

Cardiac Cell

Cardiac Cell. By Sandra Cordova. Period 4. Pictures . 1. cardiac muscle cell 2. nuclei 3. intercalated disks. Structure. The cell is Y shaped Arrangement of actin and myosin is similar to the skeletal striated muscle. Structure.

sutton
Télécharger la présentation

Cardiac Cell

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cardiac Cell By Sandra Cordova Period 4

  2. Pictures 1. cardiac muscle cell 2. nuclei 3. intercalated disks

  3. Structure • The cell is Y shaped • Arrangement of actin and myosin is similar to the skeletal striated muscle

  4. Structure • Muscle found only in the walls of the heart • Under control of the autonomic nervous system • Some cells form heart connective tissue • Others cells grow into heart valves

  5. Functions • Cardiac muscle differs from other two muscles types • Contraction can occurs even without an initial nervous input • Must contract in rhythmic fashion for the whole life of the organism • If adult cells don’t beat in unison the heart arrhythmias can occur • Pacemakers may occur in a patients whose heat doesn’t beat in rhythm • Gap junctions provide communication channels between cells • Responsible for sending blood to the atria and ventricles

  6. Intercalated disks are located between cardiac muscles cells. • These contain gap junctions which provide communication channels between cells. • Depolarization of cardiac muscle cells differs from that of other muscle cells As long as the beating cells do not touch one another their beats are independent-some are faster, some are slower Gap junctions ensure that the connected cells work as one Functions

  7. Osmosis • Movement of water through a membrane from an area of high concentration to an area of low concentration • If the cell is to far from the external environment osmosis will not function quickly enough

  8. Diffusion • Oxygen and chemicals diffuse out of the blood cell • Waste produces diffuse into the blood cells to be carried away • Glucose is the energy of the cell • Diffusion is the movement of molecules from a region of a higher concentration to one of a lower concentration

  9. Cellular Respiration • Cellular Respiration is the process by which living things obtain energy from the bonds of food molecules. • Cellular Respiration in cardiac cell breath in oxygen from plants • Take in food that has nutrients • Then it breaths out carbon dioxide

More Related