Some of tissues in the bones of the skeletal system are marrow, cartilage, ligaments, and bone tissue, and the cells inside are osteoprogenitor, osteoblasts, osteoclasts, and osteocytes. Inside of the muscular system are the skeletal tissues. In the respiratory, digestive, and excretory systems there are smooth muscle tissues and cells. In the nervous system, there is a nerve network tissue with neuron cells. Finally, inside the muscular system, there are skeletal, smooth, and cardiac tissues and cells.
Proteins are complex macromolecules that are formed by elements carbon, hydrogen, oxygen and nitrogen. Proteins composed of one or more polypeptide chains of amino acids. The main functions of proteins are to structure, support, protect, make movement, catalyst, transport and make hormones in human body. In the structural role, collagen and elastin provide support for connective tissue. Actin and myosin are proteins that involved in muscle contraction and movement.
Types of bone cells include osteoclasts. Osteoclasts break down tissue. Osteoblasts that build new tissue, and osteocytes which hold the bone together. The lining cells protect the bone. Cancellous Bone Cancellous Bone is spongy and has a higher surface area to mass ratio than cortical bone because
It is responsible for raising the hyoid bone. Within the parotid gland, the facial nerve terminates by bifurcating into five motor branches. These innervate the muscles of facial expression: Temporal branch innervates the frontalis, orbicularis oculi and corrugator
Cell Biology BI309 Mini-Review 1 Title: Dynein Motor Proteins In order for eukaryotic cells to be motile they use motor proteins that are propelled by ATP. There are three classes of motor proteins; myosin, kinesin and dynein. Dynein is the motor protein to be discussed in detail for this review. Dynein is a large and complex motor protein found in microtubules of cilia and flagella that causes movement due to the conversion of Adenosine Triphosphate(ATP) which is a form of chemical energy to mechanical energy i.e. movement.
The pericardium- It has two layers. (i) An outer layer which contains a fibrous covering that wraps around the heart and holds it in place. (ii) An inner layer which has special fluid to lubricate the heart preventing friction from occurring. 2. The myocardium- this contains a strong layer of cardiac muscle which makes the bulk of the heart.
As well, proteins, minerals and vitamins make up the bone. In addition to providing structure and support, the skeletal system makes movement possible because it is linked to the muscular system. Skeletal muscles are attached to bones, and this allows us to pull on the bones and create movement. Joints occur where two bones meet. The role of most joints in the skeletal system is to allow movement.
It is nestled between the lungs and the mediastinum. Because of where the heart is located some can feel the heart with the palm of their hands if they apply pressure under the sternum. The heart delivers blood to our entire body. In order for the heart to pump efficiently it contracts and relaxes in intervals to allow the blood to be successfully pumped to all of the cells, organs and tissues. This is called systolic and diastolic pressure.
It gathers simple molecules and combines them to make molecules that are more complex. The Golgi body then packages the more complex molecules in vesicles. It then either stores them for later use or sends them out of the cell, the Golgi body is also the organelle that builds lysosomes. The job of a lysosome is to hold enzymes that were created by the cell. The purpose of a lysosome is to digest things.
This is called integration. Stimuli are compared with, other stimuli, memories of previous stimuli, or the state of a person at a particular time. This leads to the specific response that will be generated. Describe the components of the membrane that establish the resting membrane potential Most cells in the body make use of charged particles, ions, to build up a charge across the cell membrane. Cells make use of the cell membrane to regulate ion movement between the extracellular fluid and Cell Body.