Reproductive biology, and seasonal fat body and liver cycles in the Taiwan tree dragon

Japalura swinhonis formosensis
  • 27 Pages
  • 1.23 MB
  • English
by , Taichung, Taiwan : Dep. of Biology, College of Science, Tunghai University, 1978
StatementLin Jun-I.
SeriesBiological bulletin - Department of Biology, College of Science, Tunghai University ; 49
LC ClassificationsMLCM 83/6751 (Q)
The Physical Object
Pagination12 p. : graphs ; 27 cm.
ID Numbers
Open LibraryOL4449854M
LC Control Number79112102

Interrelations of Fat Bodies and Liver to Reproduction in Female Acanthodactylus boskianus KHAMIS ABDEL RAHEEM AND GHAZI DEHLA WI Dept. of Biology, Fac. of Applied Sciences, Umm AI-Qura University, Makkah, Saudi Arabia.

ABSTRACf. Studies were undertaken to examine the interrelationships of fat bodies to reproductive activity in the lizard.

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The control of reproduction in females is more complex. The female reproductive cycle is divided into the ovarian cycle and the menstrual cycle. The ovarian cycle governs the preparation of endocrine tissues and release of eggs, while the menstrual cycle governs the preparation and maintenance of the uterine lining (Figure ).

These cycles Author: Charles Molnar, Jane Gair, Molnar, Charles, Gair, Jane. The insect fat body is analogous to vertebrate adipose tissue and liver. In this review, the new and exciting advancements made in fat body biology in the last decade are summarized.

Controlled by hormonal and nutritional signals, insect fat body cells undergo mitosis during embryogenesis, endoreplication during the larval stages, and remodeling during metamorphosis and regulate Cited by:   Thus, for example, menstrual cycles return in some female athletes when energy expenditure is reduced such as after an injury long before there is any change in body weight or an increase in body fat (Loucks, ).

Reproductive function, like appetite, is responsive to short-term changes in metabolic food oxidation. Abstract. Changes in the amount as well as in the distribution of fat in the female body are known to occur during human reproduction.

Knowledge about the magnitude of these changes as well as their biological basis is a prerequisite for adequate recommendations of Cited by: Reproduction - Reproduction - Life cycles of animals: Invertebrate animals have a rich variety of life cycles, especially among those forms that undergo metamorphosis, a radical physical change.

Butterflies, for instance, have a caterpillar stage (larva), a dormant chrysalis stage (pupa), and an adult stage (imago). One remarkable aspect of this development is that, during the transition from.

the liver and excreted. Androgens production increases rapidly at puberty 3. Action of testosterone: stimulates the development of the male reproductive organs and causes the testes to descend. it is responsible for the development and maintenance of male secondary sex characteristics (facial hair, deeper voice, muscular development).

reproductive system is essential to keeping a species alive, it is not essential to keeping an individual alive. This chapter describes the different parts of the female reproductive system: the organs involved in the process of reproduction, hormones that regulate a woman's body, the menstrual cycle, ovulation and pregnancy, the female's.

Reproductive Biology. increased height, weight and fat distribution) also occur as part of the female pubertal process. Female Reproductive System. Understanding female reproductive anatomy includes the study of the external and internal structures; and the hormonal cycle. Structures.

A free liver screening activity conducted by National Taiwan University Hospital and the Liver Disease Prevention and Treatment Research Foundation to pro-mote the prevention of hepatitis and other liver diseases. Photo: CNA. In a physical exam, a small liver tumor cannot be easily felt because the right rib cage covers most of the organ.

EVIDENCE THAT BODY FAT HAS DIRECT EFFECTS ON REPRODUCTION IN WOMEN In a variety of mammal species where the effect has been studied, the mother's body weight is correlated with offspring survival and age at onset of Fat in Women 61 reproduction, probably because heavier mothers give birth to heavier offspring (e.g., Saether ).

The reproductive cycle relates to various phenomena: puberty and sexual maturity, the breeding season, the estrous cycle, postpartum sexual activity, and aging. These components are regulated by environmental, genetic, physiologic, hormonal, behavioral, and psychosocial factors.

In the male reproductive system, the scrotum houses the testicles or testes (singular: testis), including providing passage for blood vessels, nerves, and muscles related to testicular function. The testes are a pair of male reproductive organs that produce sperm and some reproductive hormones.

Each testis is approximately by cm ( by 1 in) in size and divided into wedge-shaped. CiteScore: ℹ CiteScore: CiteScore measures the average citations received per peer-reviewed document published in this title. CiteScore values are based on citation counts in a range of four years (e.g.

) to peer-reviewed documents (articles, reviews, conference papers, data papers and book chapters) published in the same four calendar years, divided by the number of. Male animals have a reproductive system that includes specific parts and hormones. Each part has a function that is triggered by the hormones of the male reproductive system.

Credits Allan, Eric, and Rowan Blogg. Every Dog: The Complete Book of Dog Care.

Details Reproductive biology, and seasonal fat body and liver cycles in the Taiwan tree dragon EPUB

Melbourne: Oxford, Baker, Andy. Animal Science. University of Missouri. Testes The testes (singular, testis) are paired structures that originally develop in the abdomen and descend into the scrotum, a sac of skin and connective tissue positioned outside the pelvic cavity.

This scrotal location is important for maintaining a testicular temperature, approximately to degrees Celsius ( to degrees Fahrenheit) below body temperature, required for. Reproductive system Teacher reference sheet Male reproductive body parts Term Description and function Foreskin A wrinkly skin that covers the end of the penis.

Some boys are circumcised (at birth, when young or in their teens) for cultural/religious/medical reasons. It.

Description Reproductive biology, and seasonal fat body and liver cycles in the Taiwan tree dragon FB2

In this review, we examine the interaction between the liver, a key metabolic organ, and the reproductive system in both health and disease. We review the intricate bidirectional interaction between liver and the hypothalamic–pituitary–gonadal axis in normal physiology reflecting the close connection between energy homeostasis and reproduction, and we highlight sex-dimorphic aspects.

Somatic, or body cells, such as those that make up skin, hair, and muscle, are duplicated by mitosis. The sex cells, sperm and ova, are produced by meiosis in special tissues of male testes and female ovaries.

Since the vast majority of our cells are somatic, mitosis is the most common form of. The human life cycle begins at fertilization, when an egg cell inside a woman and a sperm cell from a man fuse to form a one-celled the next few days, the single, large cell divides many times to form a hollow ball of smaller cells.

Study of liver tissue []. The human liver can contain up to lobules.A lobule is a small division of the liver defined at the histological scale - between them lie the branches of the hepatic artery and the hepatic portal vein, with blood flowing through the lobules and then into the branch of the hepatic vein.

Menstrual cycle stage Uterine events Ovarian events Menstruation Proliferative Secretory Review Sheet 43 b b b a a Endometrium Any time but the three-day interval (days ) around ovulation.

(Twenty-eight day cycle is assumed.) The hormonal production of the ovary has ceased; the. Objectives 1. Map out an overview of meiosis. Describe the general anatomic components of the male and female reproductive systems.

Describe the development of the male and female reproductive systems in utero. Describe the regulation of puberty. Describe the changes in adolescent boys and girls that occur during puberty (Tanner stages). UNESCO – EOLSS SAMPLE CHAPTERS ANIMAL AND PLANT PRODUCTIVITY - Physiology of Growth and Reproduction In Livestock - R.J.

Christopherson ©Encyclopedia of Life Support Systems (EOLSS) adaptability to changing conditions. Growth Growth is the process by which an animal becomes larger over time, and may be. These hormones also contribute to the health of the heart, bones, liver, brain and many other tissues.

So, a reproductive hazard that alters your estrogen and progesterone production can also reduce your general health. About the menstrual cycle. As girls go through puberty, they begin to have periods (menstruation) and menstrual cycles.

The objective of this research was to determine body composition, total fat content, fat distribution, and serum leptin concentration in hyperlipidemic (high responder, HR) and normolipidemic (low responder, LR) California mice (Peromyscus californicus).In our initial experiments, we sought to determine whether differences in regional fat storage were associated with hyperlipidemia in this.

Abstract. As in all living organisms, survival in C. elegans requires adequate management of energy supplies. Genetic screens have revealed that C. elegans fat regulation involves a complex network of genes with known or likely functions in food sensation, neuroendocrine signaling, uptake, transport, storage and utilization of fats.

Core fat and sugar metabolic pathways are conserved in C. eleg. reproductive function in the adult, and the regulation of seasonal reproductive activity.

An important part of this chapter has been devoted to the description of reproductive physiology in sheep, goats, cattle, pigs and horses, intending to highlight the most. Liver histology.

Author: Adrian Rad BSc (Hons) • Reviewer: Uruj Zehra MBBS, MPhil, PhD Last reviewed: Octo Reading time: 14 minutes The liver is the largest internal organ of the human body, weighing approximately kg.

Embryologically it develops from the foregut and it spans the upper right and part of left abdominal quadrants. Anatomically the liver consists of four. Menstrual Cycle The menstrual cycle refers to natural changes that occur in the ovaries and uterus each month during the reproductive years of a female.

Functions of the Female Reproductive System At birth, a female's ovaries contain all the eggs she will ever produce, which may include a. The reproductive system of a female produces gametes and allows her body to support a developing fetus.

The ovaries are the primary reproductive organs of a female; they produce the female gametes and the sex hormones estrogen and vagina, also known as the birth canal, is a canal that joins the cervix to the uterus. Fat Digestion: A key function of the liver in the digestion of produced by the liver breaks down fat in the small intestines so that it can be used for energy.

Metabolism: The liver metabolizes carbohydrates, proteins, and lipids in the blood that are initially processed during cytes store glucose obtained from the break down of carbohydrates in the foods we eat.The reproductive cycle During the early stages of the embryo's life, the genital system of both sexes develops in exactly the same way.

Sexual differentiation occurs in cattle at an earlier stage than in almost any other mammal, starting when the foetus is about 40 days old.