The Complex And Major Organ Of Our Body Perform Essay

Consequently, the efferent arteriole, which filters blood away from the glomerulus, is tinier in diameter than the afferent arteriole, which carries blood into each glomerulus. This puts blood under high pressure in the glomerulus; thus it forces tiny molecules and liquid out of the capillary and into the Bowman’s capsule. Soon afterwards, the tiny and liquid molecules cross the epithelium of the Bowman’s capsule, the basement membrane and capillary wall in order to get into the Bowman’s capsule and to arrive in the nephron tubules. The consequence of this is that the filtrate (the tiny and liquid molecules) pass along the remainder of the nephron and helpful substances are reabsorbed along the route. Last of all, “the filtrate flows through the collecting duct and passes out of the kidney along the ureter” as mentioned by (Parson’s, R: p128).

C. What is the function of the ureter? How does the structure support this function?

1) The proximal tubule of the nephron (kidney tubule) in the kidney is composed of which type of epithelium? simple cuboidal epithelium Yes, the simple cuboidal cells line the kidney tubules (nephrons) so that secretion and absorption can take place.

The function of ureters is to enter the urinary bladder at an angle to help prevent any back flow (reflux) of urine back into the ureter. The ureter connects the kidney to the urinary bladder and urine is drained from the kidney and stored in the bladder it’s a passage through which urine passes from kidneys to the urinary bladder.

The concentration of dissolved substances is less in the extracellular fluid than in the cytoplasm. Hypotonic Solution Concentration of dissolved substances (solute) Concentration of water (solvent) What happens to an animal cells? Inside the cell Greater Less Outside the cell Less Greater Membrane

The function of the connective tissue is to support, bind, cover, protect and give structure to the body.

It represents the part of the kidney that acts like a semipermeable membrane, the nephrons. The nephrons are made of membranous tubules that act analogously to the semipermeable dialysis bag. When blood passes through the tubules, particles in the blood leave the tubule by the process of diffusion.

Both ascending and descending limbs are found in the loop of Henle, the purpose of the loop is to lessen the amount of water within the urine but make sure that the concentration doesn’t change. This then produces a hypertonic medulla – this means that it helps the loop of Henle reabsorb water but also helps the collecting ducts by reabsorption of water. This is due to them reaching the renal pelvis through the medulla. There are 3 parts of the limbs – thin descending and ascending and also thick ascending. The thin descending limb doesn’t have any active transport and have a simple squamous epithelium just like the thin ascending limb. The only difference is the thin ascending limb doesn’t have active transport of salt. The thin descending

P4- Explain the physiology of two named body systems in relation to energy metabolism in the body.

All major structures and organs of the human body are derived from the three major germ layers formed during gastrulation; ectoderm, mesoderm and endoderm. The ectoderm gives rise to the central nervous system (the brain and spinal cord), the peripheral nervous system, the sensory epithelia of the eye, ear, and nose, the epidermis and its appendages (the nails and hair), the mammary glands, the hypophysis, the subcutaneous glands and the enamel of the teeth. The mesoderm gives rise to the entire cardiovascular system, including the heart, connective tissue, cartilage, and bone, striated and smooth muscles, blood and lymph vessels and cells, the kidneys, the gonads (ovaries and testes) and genital ducts, the serous membranes lining the body

It was evident that at all layers of the kidney, the colours are different. The renal cortex of the kidney, which is labeled in diagram 2(the interior of the kidney), was almost a brownish shade of red whereas the next

All the systems in the human body are vital to our survival and well-being. If you take away the functions of just one of these systems our whole body will cease to work properly. The main systems of the human body are the nervous, endocrine respiratory, circulatory, immune, digestive, excretory, skeletal, muscular, and the reproductive systems. They all work together in harmony and unison to keep us alive.

The human body is a complex system that is composed of billions of cells, undergoing growth, division and death in an orderly fashion on a daily basis. When this process occurs in an abnormal manner, the outcome is typically referred to as a tumor. In today’s world, tumor is a term that is commonly heard throughout the world. Also referred to as neoplasm, a tumor is an abnormal growth of tissue resulting from the rapid cell division due to some form of mutation (Cooper). They are classified into four main groups: benign, in situ, malignant and those with uncertain or unknown behaviour. Of the four classes of tumor, malignant neoplasms are those tumors that are typically referred to as cancers (Cooper). These tumors involve abnormal cell growth that has the potential to invade and destroy the surrounding tissue, possibly forming metastases and becoming fatal. Eye tumors are secondary tumors that results from a primary tumor that has spread from other parts of the body and have invaded the eye. There are two primary types that occur within the eye: retinoblastoma in children, and melanoma in adults.

How we came to know what we know now about anatomy and physiology has always been a great curiosity of anyone interested in the medical field. Knowing the history can lead to even more discoveries in the future. When you think of anatomy you imagine something like this picture below.

When asked ‘what is the heaviest organ in our body?’, most people would not think it is the skin. However, the truth is that the skin is the heaviest organ in our body, it is covering our entire body, and feels lightweight on our bodies. One of the reason why the skin is so heavy is that the skin is actually composed of three major layers, the epidermis, dermis, and the subcutaneous layers. The epidermis itself has 5 layers, the dead skin cells on the topmost layer, the stratum corneum, and the cells that are functioning are in the stratum basale. In addition to housing the different layers of the skin, the skin also houses sensory receptors which is critical for reaction time. For example, if hot water was to splash onto someone, the person will quickly react and perform the necessary procedures to prevent any further damage. This is due to the receptors notifying the body that the water is hot and can cause potential damage. The skin already houses the receptors, and the different layers of the skin, what are other functions of the skin? Other major functions of the skin are: protecting the essentials of the human body from physical, chemical, or bacterial damage, prevention of water loss, and the maintenance of homeostasis.