Tissues and Cell Structures

It is made up of either liquid, solid, or connective tissue, within the matrix there are many types of connecting fibres, such as collagen and elastic fibres.

Skeletal Muscle Structure.The cells of skeletal muscles are long fiber-like structures. They contain many nuclei and are subdivided into smaller structures called myofibrils. Myofibrils are composed of 2 kinds of myofilaments. The thin filaments are made of 2 strands of the protein actin and one strand of a regulatory protein coiled together. The thick filaments are staggered arrays of myosin molecules.

Smooth muscle is one of three muscle fiber types found in animals. Unlike skeletal and cardiac muscle cells, smooth muscle cells are not striated, and have single nuclei. Smooth muscles are typically under control of the autonomic nervous system, and do not contract voluntarily. Smooth muscle contracts slowly,

4. Organ level- Organs are made up of different types of tissues. Organ is a discrete structure composed of at least two tissue types that performs a specific function for the body.

The nervous system is made up of basic units called neurons. The main role of the neurons is to receive, integrate and transmit information throughout the body. There are some neuroglial cells found in nervous system aswell which provide support to the neurons by giving protection and nourishment Neurons have nerve processes that looks like finger like projections extended from the nerve cell body. They also contain axons and dendrites which enable them to transmit signals throughout the body. Normally, axon carry signals away from the cell body and dendrites carry signals toward the cell body according to Regina Bailey (2013). Neurons have three different shapes: bipolar, unipolar and multipolar where bipolar has two neuronal processes coming out of the cell body, unipolar has only one neuronal process coming out of the cell body and multipolar has many neuronal processes coming out of the cell body.

types of muscle tissues : skeletal, cardiac, smooth. Each of these different tissues has the ability

Tissues: Tissues are groups of similar cells that have specific functions. In this piece of work I’ll talk about these types of cells:

A muscle is made of fibers. They are long cylinders that are larger than many specialized cells in the human body, about 1-40 microns long and 10-100 microns in diameter. Muscle fibers are made of myofibrils, or filaments. The filaments are arranged in a hexagonal shape. There are both thick and thin filaments. The z-disk or z-line runs down the long axis of the muscle fiber. The z-disk is a structure made up of myofibrils and is called a sarcomere. Running along the z-disk is the t-tubule which is a membrane system called the sarcoplasmic reticulum. This stores and releases the calcium ions that cause muscle contractions. While a muscle is contracting, the myosin

Serves as the cell 's skeleton. It is an interior protein system that gives the cytoplasm quality and adaptability. The cytoskeleton of all cells is made of microfilaments, halfway fibers, and microtubules. Muscle cells contain these cytoskeletal parts in addition to thick fibers. The fibers and microtubules of the cytoskeleton frame a dynamic system whose ceaseless rearrangement influences cell shape and capacity.

Muscles are made up of small fibres that contract making the whole muscle contract. There are three types of muscle fibre; Type 1, Type 2a and Type 2b. All individuals have a combination of all fibre types and their combination of fibre types is genetically determined. Different parts of the body have different combinations of fibre types.

Muscle tissue - Muscle cells are the contractive tissue of body that produce force and cause motion within internal organs. Muscle tissue is separated into three different categories: visceral or smooth muscle that are located in the inner linings of organs and skeletal

In this assignment I’m going to talk about the structure of the main tissues which are found within the body as well as what their role is in the terms of two named organs of the body. Tissues are a collection of similar cells that group together to carry out a specific function within the body. There are four different types of tissue found in the human body which include; epithelial tissue; connective tissue; muscle tissue and nerve tissue.

The nervous system is a chain of interconnected nerve fibers which is constructed by the central nervous system and Peripheral nervous system. The job of the nervous system is to send messages from the brain and spinal cord to different parts of the body.

The nervous tissue is the main component of the two parts, the brain and spinal cord of the central nervous system. The nervous system is the response for signalling it stimulates the muscle contraction and create an awareness of the environment. The nervous tissue is the main component of the two parts, the brain and spinal cord of the central nervous system. The nervous system is the response for signalling it stimulates the muscle contraction and create an awareness of the environment. The nervous tissue is the main component of the two parts, the brain and spinal cord of the central nervous system. The nervous system is the response for signalling it stimulates the muscle contraction and create an awareness of the environment.

Human adults have hundreds of different cell types in their body. A quick search on Wikipedia resulted in a long list of more than 100 types of cells. They are classifed in three broad categories: