• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
ExamView - Anatomy REVIEW for Final Exam 2015.tst
ExamView - Anatomy REVIEW for Final Exam 2015.tst

... ____ 24. Which of the following is a function of the cell membrane? a. breaks down lipids, carbohydrates, and proteins from foods b. stores water, salt, proteins, and carbohydrates c. keeps the cell wall in place d. regulates which materials enter and leave the cell ____ 25. The cell membrane contai ...
tunica adventitia
tunica adventitia

... The circulatory system comprises both the blood and lymphatic vascular systems. The blood vascular system is composed of the following structures: 1- The heart, an organ whose function is to pump the blood. 2- The arteries, a series of efferent vessels that become smaller as they branch, and whose f ...
Photon Genius Brochure
Photon Genius Brochure

... muscles, preventing and healing hemorrhoids. • The Genius stimulates the body into releasing the all-important human growth hormone, a key to longevity as well as improvement in body composition by boosting lean muscle mass and bone density while decreasing fat tissue. (Boost muscle growth) • Using ...
Drugs Commonly Used for Treating Cervical Cancer
Drugs Commonly Used for Treating Cervical Cancer

... involvement up to but not including the basement membrane, noninfiltrating, noninvasive, no stromal involvement, papillary noninfiltrating ...
Tissues
Tissues

... like the human, the cells join forces as tissues. Tissues are formed from groups of cells of the same type and that have a similar function. These tissues serve as the basic construction material for organs. In this exercise, we will look at some of the primary tissues that form our body. ...
Honors Biology Name Date Period Human Digestive System The
Honors Biology Name Date Period Human Digestive System The

... How do amino acids and monosaccharides get from the lumen of the small intestine to a body cell? At the brush border, when disaccharides and dipeptides are broken down into amino acids and monosaccharides, these are passed through special protein channels in the cell membranes of the villi epitheli ...
Axon - Denver School of Nursing
Axon - Denver School of Nursing

... – Dendrite • Receptive portion of neuron – Axon • Carries nerve impulse away from the cell body • One per neuron ...
Circulatory System * General Aspects
Circulatory System * General Aspects

... by way of the lymphatics (due to the large size of the fat molecules and the incomplete endothelial lining of lymphatic vessels, fatty lymph = chyle). • Lacteals = lymphatic vessels leaving intestine carrying ...
Simple Animals - Veritas Science
Simple Animals - Veritas Science

... outer cuticle for protection  Digestive system has 2 openings: Mouth  Anus “Tube-in-Tube Design” - saves time in efficiency - allows more time for digestion - prevents disease  Simplest animals to have bilateral symmetry and cephalization  Some are free-living (non-parasitic) - Ascaris lumbracoi ...


... – Lining of the lung, digestive and urinary tracts • controls what substances enter/exit the body and what substances stay in/out of the body ...
File - chemistryattweed
File - chemistryattweed

... To reach the body cells, materials in the blood must pass into the surrounding body fluid before reaching the cells. Fluid from the blood may pass through the blood vessel walls to become part of the interstitial or body fluid which bathes all cells and keeps them moist. Some of this body fluid is r ...
Diffusion and pollutants
Diffusion and pollutants

... Part 2: In this part, students will be introduced to the Deliver Change AirSensa data. Teachers can either retrieve the data from their school’s own individual device, if applicable, or use a prepared data set provided by Deliver Change. This data will be able to show the type of air pollutants in t ...
301 Amy Young Three Definitions
301 Amy Young Three Definitions

... diameter and have a biconcave shape (Figure 1). Biconcave means concave on both sides. Their shape gives them a larger surface area, which is ideal for gas exchange. ...
Maintaining a Dynamic Equilibrium The Need for Homeostasis
Maintaining a Dynamic Equilibrium The Need for Homeostasis

... Maintaining water balance is a major concern for all living things. Plants as well as animals ...
2.1 Cell Theory
2.1 Cell Theory

... 2. At the same time we require a human egg cell. This is mainly as the cell retains the tendency to divide unlike the sample tissue from the patient. 3. The nucleus is removed from the egg and discarded. The cell body itself is retained. 4. The nucleus of the patients cell is removed and retained. T ...
File - Anatomy & Physiology
File - Anatomy & Physiology

...  Endomysium: thin connective tissue covering muscle fiber  Perimysium: coarser fibrous membrane covering bundles of muscle fibers creating a fascicle (bundle of muscle fibers bound together by connective tissue) ...
The Animal Kingdom
The Animal Kingdom

... – Exoskeletons (on the outside) made of chitin (these will need to be shed in order for the animal to grow) ex. Shells of insects, crabs, spiders – Endoskeletons (on the inside) made of bone – Hydrostatic skeletons: water or another fluid provides pressure pushing out from the inside of the animal t ...
Characteristics of Kingdom Animalia
Characteristics of Kingdom Animalia

... 1. Notochord – support and attachment (runs through trunk). It is a flexible rod-shaped body found in embryos of all chordates. It is composed of cells derived from the mesoderm and defines the primitive axis of the embryo. In some chordates, it persists throughout life as the main axial support of ...
Allied Health I
Allied Health I

... Anatomy studies the shape an structure of an organisms body and the relationship of one body part to another. Physiology studies the function of each body part and how the functions of the various body parts coordinate to form a complete living organism. For our purposes in this unit it is the study ...
Chapter 1
Chapter 1

... – Organ level *can be part of more than 1 system – System level – Organismal level ...
Lab6 - Personal
Lab6 - Personal

... These branches are end arteries and, if occluded, will result in death of the ganglion cells and therefore total blindness from that quadrant of the eye. The posterior ciliary arteries penetrate the sclera around the optic disc and form the choroidocapillary plexus in the choroid. Materials from thi ...
Medical Anatomy Final Review
Medical Anatomy Final Review

... c. held together by peptide bonds • Nucleic Acids: DNA/RNA a. adenine/thymine b. cytosine/guanine 02.12 ATP and Energy Conversion • Adenosine Triphosphate (ATP) a. Found in all living systems. b. High energy compound that drives most chemical reactions. c. ATP is produced by body cells in a process ...
p •ot - wwphs
p •ot - wwphs

... 4. The radiata and bilateria of the eumetazoa both exhibit a. cepha]ization b. bilateraI symmetry of larval forms c. dominance of the diploid stage in the life cycle ci.. a complete digestive tract with separate mouth and anus e. three germ layers in embryonic development 5. Bilateral symmetry in th ...
Chapter21 Lecture notes
Chapter21 Lecture notes

... NOTE: Smoking paralyzes cilia and, thus, allows debris that would otherwise be trapped and removed to reach the lungs. Furthermore, the paralysis of cilia in the oviducts probably contributes to the higher incidence of ectopic pregnancies among smokers. Module 20.5 Connective tissue binds and suppo ...
A View of Life
A View of Life

... Epithelial tissue consists of tightly packed cells forming a continuous layer that serve in protection, secretion, absorption, excretion, and filtration. – Named according to shape of cell.  Squamous - Flattened.  Cuboidal - Cubed.  Columnar - Column. ...
< 1 ... 73 74 75 76 77 78 79 80 81 ... 165 >

Human embryogenesis



Human embryogenesis is the process of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, human development entails growth from a one celled zygote to an adult human being. Fertilisation occurs when the sperm cell successfully enters and fuses with an egg cell (ovum). The genetic material of the sperm and egg then combine to form a single cell called a zygote and the germinal stage of prenatal development commences. Embryogenesis covers the first eight weeks of development and at the beginning of the ninth week the embryo is termed a fetus.Human embryology is the study of this development during the first eight weeks after fertilisation. The normal period of gestation (pregnancy) is nine months or 38 weeks.The germinal stage, refers to the time from fertilization, through the development of the early embryo until implantation is completed in the uterus. The germinal stage takes around 10 days.During this stage, the zygote, which is defined as an embryo because it contains a full complement of genetic material, begins to divide, in a process called cleavage. A blastocyst is then formed and implanted in the uterus. Embryogenesis continues with the next stage of gastrulation when the three germ layers of the embryo form in a process called histogenesis, and the processes of neurulation and organogenesis follow. The embryo is referred to as a fetus in the later stages of prenatal development, usually taken to be at the beginning of the ninth week. In comparison to the embryo, the fetus has more recognizable external features, and a more complete set of developing organs. The entire process of embryogenesis involves coordinated spatial and temporal changes in gene expression, cell growth and cellular differentiation. A nearly identical process occurs in other species, especially among chordates.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report