Descriptions and examples of the three types of muscles in the human body. Move substances around the body blood from the heart and food through the digestive system. Skeletal muscles, viewed under a microscope, appear striated. Also called "striated" muscle.
This page is part of the section about the structure and function of different Tissue Types, which is related to the section about Histology and Cells incl. The tissue types section is included to complete description of the knowledge of "Histology - The Cell" required by some courses in First-Level Anatomy and Physiology.
To read about other tissue types see the list of on the left. There are 3 types of muscle tissue: Skeletal muscle tissue, Cardiac muscle tissue, and Smooth muscle tissue.
The structure of these muscle tissues can be described from the level of detail of the muscle fibres muscle cells through all the other muscle structures and parts of structures that bind muscle cells together enabling them to perform their functions.
The functions of muscle tissues depend on the type of muscle tissues and their locations in the body. Here is an overview of the 3 types of muscle tissues: Skeletal muscle is called "striated" because of its appearance consisting of light and dark bands visible using a light microscope.
As shown in the diagram on the righta single skeletal muscle cell is long and approximately cylindrical in shape, with many nuclei located at the edges periphery of the cell. Movement of the skeleton under concious control, including movement of limbs, fingers, toes, neck, etc.
Movement of tissues of facial expression under concious control, e. Cardiac muscle fibers are striated, branched sometimes described as Y-shapedand have a single central nucleus. These fibers are attached at their ends to adjoining fibers by thick plasma membranes called intercalated discs shown in digram on the right.
Pumping of blood through the heart: Alternate contraction and relaxation of cardiac muscle pumps De-oxygenated blood through the Right Atrium and Right Ventricle to the lungs, and Oxygenated blood through the Left Atrium and Left Ventricle to the aorta, then the rest of the body.
Unlike Skeletal and Cardiac muscle tissue, Smooth muscle is not striated. Smooth muscle fibers are small and tapered - with the ends reducing in size, in contrast to the cylindrical shape of skeletal muscle. Each smooth muscle fiber has a single centrally located nucleus.
Contractions of smooth muscle constrict i. This is particularly important in the digestive system in which the action of smooth muscle helps to move food along the gastrointestinal tract as well as breaking the food down further.
Smooth muscle also contributes to moving fluids through the body and to the elimination of indigestible matter from the gastrointestinal system. Diagram of Smooth Muscle Tissue Table comparing the 3 types of muscle tissue: Type of Muscle Tissue.The three types of muscle tissue include smooth muscle, cardiac muscle and skeletal muscle.
Each type of muscle has a specific function in the human body. Smooth muscle is responsible for helping hollow organs contract and is found in various body systems, including the urinary system, where it plays a role in the expulsion of urine from the body.
This activity focuses on muscle tissue. Students should complete the worksheet before you compare and contrast the different types of muscle cells. A muscle is a tissue that performs different functions which cause some sort of movement to take place.
Muscular Tissue - Anatomy & physiology revision about the structure and functions of human tissue types. The structure of muscle tissues can be described from the level of detail of muscle fibres (muscle cells) through all the muscle structures and parts of structures that bind muscle cells together enabling them to perform their functions.
The 3 types of muscle tissue are cardiac, smooth, and skeletal. Cardiac muscle cells are located in the walls of the heart, appear striated, and are under involuntary control.
Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control. Three types of muscle tissue. STUDY. PLAY. Muscle tissue. Specialized for contraction that shortens the cell along its longitudinal axis.
Sarcoplasm. Cytoplasm of a muscle cell. Sarcolemma. Plasma lemons of a muscle cell. Three types of muscle tissue. Skeletal cardiac smooth; each differ in . There are three types of muscle tissue recognized in vertebrates: Skeletal muscle or "voluntary muscle" is anchored by tendons (or by aponeuroses at a few places) to bone and is used to effect skeletal movement such as locomotion and in maintaining posture.