Nobody downloaded yet

HUMAN REPRODUCTIVE BIOLOGY QUESTION - Assignment Example

Comments (0) Cite this document
Summary
Excess hormonal flow to target cells inhibits the producing sites to reduce secretion. Hormonal actions produce physiological responses that sometimes inhibit the further action of the same…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER94.2% of users find it useful
HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT
Read TextPreview

Extract of sample "HUMAN REPRODUCTIVE BIOLOGY QUESTION"

Download file to see previous pages Increased hypothalamus functions causes secretion of follicle stimulating hormone that mark the onset of puberty (Wilkosz et al., 6). FSH stimulates ovarian follicle to secrete oestrogen and adrenal gland to secrete androgens. Sex steroid causes secondary sexual characteristics of puberty.
Sperms develop from spermatogonia mature into primary spermatocytes. Secondary spermatocytes form after first meiotic division of the primary spermatocytes. Secondary spermatocytes undergo second meiotic division to spermatids. Both divisions take place in the seminiferous tubules after which spermatids migrate to the sertoli cells (McLafferty et al., 38). Maturation of spermatids into spermatozoa involves leydig cells that produce GnRH, LH (ICSH), DHT, testosterone, ABP, and inhibin that regulate spermatogenesis.
The epididymis stores mature sperms. Upon sufficient stimulation, spermatozoa move through vas deferens, ampulla, ejaculatory duct , urethra then outside the body. The tubular pathway contracts to propel the ejaculate. Semen consist of secretions form the prostate, seminal and seminal vesicles. The secretions neutralise urine PH and provide nutrition to ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT - 2”, n.d.)
Retrieved from https://studentshare.org/biology/1673710-human-reproductive-biology-question-assignment
(HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT - 2)
https://studentshare.org/biology/1673710-human-reproductive-biology-question-assignment.
“HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT - 2”, n.d. https://studentshare.org/biology/1673710-human-reproductive-biology-question-assignment.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT

Human Biology

...? HUMAN BIOLOGY Institute In the context of ageing, research the effects on the body of osteoarthritis and osteoporosis. Osteoarthritis is a pathological condition of the joints which is considered to be the joint pathology presenting with the highest number of cases in the developed countries of the world. It is a condition which restricts the regular everyday activities of the individuals affected. This disease affects the articular cartilage of the joints of the body and leads to their destruction. The most common joint to be affected is the knee joint. The most common cause which is associated primarily with the development of this disease is ageing. It has been analyzed that the onset of the disease...
4 Pages(1000 words)Assignment

Biology Question

... Biology 21 October Biology Questions How are graded potentials (for example, EPSPs and/or IPSPs) generated at dendrites and/or cell bodies of neurons? The brain comprises of two types of cells: neurons and glial cells. The neurons serve as the coordinators and recipients of information. Conversely, glial cells back the functions of the neurons. Information transmission occurs electrically along the neurons. This electrical information flow prompts nerve cells to produce two types of graded potentials, which are Action potentials and Graded potentials. The neurons transmit information to each other through the dendrites. Action potentials are however comparably large in size. They signal strength of stimulus by frequency... . Print. Beck,...
5 Pages(1250 words)Essay

Human biology

...The maintenance of a constant internal environment of an organism is called homeostasis, a process of utmost importance for the body, failure at which would lead to disastrous, if not fatal, consequences (Taylor, Green, & Stout, 1984). The basis of homeostasis lies in the concept of negative feedback i.e. if the system is disturbed; the disturbances set in motion a sequence of events which tends to restore the system to its original state. Following are three of hundreds of examples that can be explained through the concepts of homeostasis. I. Regulation of blood glucose level: One of the most important metabolites in the human body is glucose and, therefore, its concentration in the body has to be strictly maintained....
3 Pages(750 words)Assignment

Human biology

...Human Biology Clinical Situation: Mr. H. has a history of coronary artery disease. Immediately after eating, he experienced moderate chest discomfort that radiated to his left shoulder and descended into the left arm and the little finger. The pain was unrelieved by nitroglycerin tablets, so he was admitted to the hospital for further evaluation. A cardiac catheterization revealed a partial blockage of four coronary arteries, and he was scheduled for bypass surgery. Discuss the consequences of decreased coronary blood flow on myocardial function; a description of cardiac catheterization, and a description of the bypass procedure (CABG, coronary artery bypass graft). The Consequences of Decreased Coronary...
2 Pages(500 words)Research Paper

Human Biology

...– the phenotype of the heterozygote is intermediate to both zygotes Codominance- this is the relationship of two alleles in a gene Polygenic inheritance – This means that one more gene produce a trait in humans an example of which is height Question Sheet G 1. Explain Darwins theory of evolution.  Compare and contrast Lamarks and Darwins theory on the mechanisms of evolution. Darwin popularized the theory of evolution and process of natural selection where only the fittest specie would survive. Some animals have evolved and changed their physical features in order to survive the environment. Lamarck on the other hand is known for the Theory of Inherited Characteristics. He said that the off springs of...
4 Pages(1000 words)Coursework

Human Biology

...Response to biology Question: Human Biology Response to biology Question: Human Biology Response to question Whereas it is believed that man evolved from the African Lineage, the view has been challenged on the basis of why people in the Northern Europe do not possess a dark skin. However, this has been effectively accounted based on the Darwin’s evolution theory. According Darwin (1859), the environment plays a crucial role in shaping the behavior and appearance of organisms. As organisms interact with the environment, they become adapted, depending on their demands. The man who went to the North interacted with a set of different environmental conditions that made him to become light-skinned. Response to Question 2 Based... on the...
1 Pages(250 words)Assignment

Human Biology

...HUMAN BIOLOGY al Affiliation) Key Words: Neuron, reflex arc, ear, eye TAQ a) Complete the boxes below for each part of the nervous system. b) For each of the subdivisions you have labelled above (the ones originally marked by?) explain their functions within the nervous system and in the case of certain answers their relationships to each other. The brain Its primary function is to regulate all the activities of the human body. It is composed of three regions namely the cerebellum, cerebrum and the advanced marrow (Mader, 2006). The cerebrum serves in conscious actions such as speech, movement, sight, and memory. The cerebellum performs the role of body balance regulation and muscle coordination for movement. The spinal cord... the retina....
12 Pages(3000 words)Coursework

HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT

...Human Reproductive Biology Mitosis Somatic cells need to multiply. This involves the division of the somatic cells to give rise to new daughter cells. Mitosis is the nuclear division together with division of the cytoplasm (cytokinesis) that gives rise to two new daughter cells from the initial cell that we had. There are generally four stages in mitosis. These include prophase, metaphase, anaphase and telophase. However, an interphase stage is included. Interphase is not one of the stages of mitosis. It’s just a period when the cells are preparing for the next division. Mitosis occurs in the somatic cells. Unlike meiosis which occurs in the gamete cells. The first mitotic stage is...
3 Pages(750 words)Assignment

HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT

...Task: Definitions Chromatid: This is either of the strands of duplicated chromosome that have linkage at the centromere. Centromere: It is a central zone of a chromosome whereby sister-chromatids have linkage. Autosome: These are chromosomes that do not take part in sex ascertainment. They are 22 in human system. Sex chromosome: It’s a chromosome pair that dictates which sex one belongs to, if one is masculine or feminine. Gene: Is an element of heredity that contains DNA and lies on a specified locality in a chromosome. Karyotype: It is simply an image/profile of chromosomes in a person’s body whereby two of them dictate gender whereas and there other 22 that become arranged in size from largest to smallest....
5 Pages(1250 words)Assignment

HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT

... Week 3 Biology Assignment Question Birth Control Category Examples General Range of Effectiveness Advantages Disadvantages Rhythm Calendar method 80% No prescription is required and is accessible. Can be done at home without consulting a doctor. The methods are natural since it doesn’t involve intake of synthetic hormones. It is not reliable, since the menstrual cycle differs among women. The cycle can also be affected by such factors as stress, diet and climatic changes. Surgical Tubal ligation 100% Highly effective Permanent Irreversible Does not protect against STDs It is costly Barrier Male and female condom 85% effective Inexpensive Easy to obtain Protects against most STDs It is not reliable and must be utilized... ...
4 Pages(1000 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Assignment on topic HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT for FREE!

Contact Us