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Feb 15, 2024 · Muscle cells, commonly known as myocytes, are the cells that make up muscle tissue. There are 3 types of muscle cells in the human body; cardiac, skeletal, and smooth. Cardiac and skeletal myocytes are sometimes referred to as muscle fibers due to their long and fibrous shape.
- Muscle
Skeletal muscle is the most common type of muscle tissue...
- Muscle
Connective tissues perform many functions in the body, but most importantly, they support and connect other tissues; from the connective tissue sheath that surrounds muscle cells to the tendons that attach muscles to bones and to the skeleton that supports the positions of the body.
The three types of muscle cells are skeletal, cardiac, and smooth. Their morphologies match their specific functions in the body. Skeletal muscle is voluntary and responds to conscious stimuli. The cells are striated and multinucleated appearing as long, unbranched cylinders. Cardiac muscle is involuntary and found only in the heart.
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
- Circular
- Convergent
- Parallel
- Pennate
Circular muscles (also known as skeletal sphincter muscles) have a fascicular pattern where the fascicles are arranged in concentric rings. Muscles with this arrangement surround external body openings, which they close by contracting. Muscles with this fascicular arrangement may be termed as orbicular muscles (Latin: orbiculus = small disc), such ...
A convergent (a.k.a. triangular) muscle has a broad origin with fascicles converging toward a single tendon of insertion. Such a muscle is triangular or fan shaped. One example is the pectoralis major muscle of the anterior thorax.
In a parallel arrangement, the length of the fascicles run to the long axis of the muscle. There are three types of parallel muscles: 1. quadrilateral muscles, which have a short, flat form e.g. thyrohyoid muscle 2. strap muscles, that have a narrow belt- or strap-like belly e.g. sartorius muscle 3. fusiform muscles, with a spindle-shaped and exten...
In a pennate pattern, the fascicles are short and they attach obliquely to a central tendon that runs the length of the muscle. Pennate muscles are of three forms: 1. Unipennate, in which the fascicles insert into only one side of the tendon, as in the extensor digitorum longus muscle of the leg; 2. Bipennate, in which the fascicles insert into the...
Most muscle tissue develops from a common cell called a myoblast, a muscle-forming stem cell, that arises from embryonic mesoderm. Myoblasts migrate to various regions of the body, eventually differentiating into one of the three types of muscle tissue: smooth, cardiac, or skeletal muscle tissue.
Muscle is the tissue in animals that allows for active movement of the body or materials within the body. There are three types of muscle tissue: skeletal muscle, cardiac muscle, and smooth muscle. Most of the body’s skeletal muscle produces movement by acting on the skeleton.
For example, muscle tissue has muscle cells, which contract to make the muscle move. Muscle tissue also has nerve cells, which send signals to tell the muscle when to contract and relax.
