When the heart contracts and pours blood in these arteries, the walls need to stretch to house the blood. The arterial hydrostatic pressure that results from ventricular contraction is the systolic blood pressure. The period between the heart constrictions, the elastic walls recoil to maintain the blood pressure. The arterial hydrostatic pressure between contractions is the diastolic blood pressure. The walls of these have a lot of elastin .Elastin is a fibre which is made up of proteins.
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.
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.
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
The bone marrow has the soft tissue located at the center of bone. Next one is the thymus. Thymus is the place where the T lymphocytes matured. There is alos lymphatic vessels qho are parallels with veins and arteries. It allows the cells to pass through.
The components of this system are made up of 206 skeletal bones, muscles, cartilage, ligaments, a network of tendons, joints, and the other connective tissue that supports and binds tissue and organs together.The skeletal portion of this system serves us by being the main pillars and storage system for phosphorus and calcium, and it also contains fundamental parts of the hematopoietic system. Furthermore it has 2 parts, which are the axial skeletol, which is made out of the vertebral cullum, the rib cage, and the skull, and the appendicular skeletol which in turn is made up of the shoulder girdle and the pelvic one. We also have 4 types main types of bones which are, irregular bone, flat bones, long bones and short bones. As to the muscles these are divided in to 3 mains parts, which are the heart muscle which is unique only to the heart, the skeletal or voluntary muscle, and the smooth or involuntary
The is like the sound waves entering through our mouths to in between the person we are talking too. The waves are transferred from one person (nerve cell) to the other. The soma is the cell body. It contains proteins for dendrites and cell organelles. This is like the human body containing all the organs and processes allowing the body to work.
Results and Discussion The group viewed each specimen in the microscope, the members then observed four types of tissues. Each tissue was identified. The results are as follows: • Epithelial Tissue - The epithelial tissue covers majority of the body surface and also makes up the lining of some internal organs. This tissue is responsible for the protection of the body from dust, dirt, bacteria and other organisms that lie outside the body, it may also be changed/modified to glands that produce mucus, hormones, enzymes and etc. , also all epithelial cells are supported by a basement membrane underneath it.
These rods are connected at their base by the plantar fascia. When force is applied to the apex of the MLA, the arch depresses and the two rods separate then the tension is distributed throughout the plantar fascia. The main ligaments that aid in supporting the MLA are the long and short plantar ligaments and the calcaneonavicular ligament.
4b). Sequential concentric lamellae have alternate fiber orientations with each other, spiralling around the central canal . These fundamental units are aligned on the direction in which force is applied to bone, and the concentric layers give bone tissue an extra resistance to breaking, as a crack cannot be easily spread from lamellae to lamellae. Figure 4: a) Hierarchical structure of bone ranging from the macroscale skeleton to nanoscale collage and HA. Nair, A.K., et al., Molecular mechanics of mineralized collagen fibrils in bone.
The somatic nervous system is made up of sensory organs and nerves that connects to the skin, also that connects to all the skeleton muscles. The Somatic nervous system has two neutrons. Those two neutrons are sensory neurons and motor neurons. The sensory neurons job is to carry information to the central nervous system. The motor neurons job is to carry information from the brain and spinal cord to the muscle fibers throughout the
It binds and stabilizes actin filaments, as well as regulating actin-myosin interaction in a calcium (Ca2+)/calmodulin (CaM)- and/or phosphorylation-dependent manner. (17) The domain of this protein includes binding activities to Ca++-calmodulin, actin, tropomyosin, myosin, and phospholipids. As