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Cells
Cells

... Tissues are groups of cells working together to perform a certain job. Organs are groups of tissue that perform a certain function. Organs working together to carry out a certain life function are an organ system. An Organism is any organized body or system conceived of as analogous to a living bein ...
Cells, Tissues, Organs, and Systems
Cells, Tissues, Organs, and Systems

...  In your body, a single skin cell or blood cell does not work alone.  Cells work together in groups called tissues.  A tissue is a group of similar cells that work together carrying out a certain job.  For example, skin cells work together as skin tissue that covers and protects your body. Other ...
Cells, Tissues, Organs, and Systems
Cells, Tissues, Organs, and Systems

...  In your body, a single skin cell or blood cell does not work alone.  Cells work together in groups called tissues.  A tissue is a group of similar cells that work together carrying out a certain job.  For example, skin cells work together as skin tissue that covers and protects your body. Other ...
Cells, Tissues, Organs, and Systems
Cells, Tissues, Organs, and Systems

...  In your body, a single skin cell or blood cell does not work alone.  Cells work together in groups called tissues.  A tissue is a group of similar cells that work together carrying out a certain job.  For example, skin cells work together as skin tissue that covers and protects your body. Other ...
Introduction to Animals
Introduction to Animals

... Sexual reproduction restores the diploid number and increases genetic variation. During the developmental process, the zygote undergoes many mitotic divisions. These identical cells must undergo differentiation. Differentiation is process of cell becoming different from each other and being speciali ...
HUMAN Body systems and Major Organs
HUMAN Body systems and Major Organs

... HUMAN Body systems and Major Organs 1.Circulatory: Move gas, water, nutrients, waste around body\ A. Heart – pumps blood B. Blood vessels – control where blood moves 1. Arteries - Away from heart 2. Veins - Return to heart, one way valves 3. Capillaries – leaky vessels that are site of cellular conn ...
Intro to Animals Quiz
Intro to Animals Quiz

... a. a body cavity lined with tissues derived from the endoderm b. a body cavity lined with endoderm and mesoderm c. a body cavity lined with mesoderm d. any coelomate, pseudocoelomate or acoelomate 9. The difference between pseudocoelomates and coelomates is that pseudocoelomates _____, whereas coelo ...
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From Single Cells to Body Systems
From Single Cells to Body Systems

... Muscle cells are long and thin (contract as they move) Nerve cells are very long ...
Laboratory 4: Cells Structure and Function
Laboratory 4: Cells Structure and Function

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Characteristics of Living Things
Characteristics of Living Things

... a) All living things are composed of cells – All cells are similar. All plant cells are similar to other plant cells as well as all human cells are similar. b) Living things reproduce, grow, and repair themselves – Cells reproduce by dividing into two. New cells are needed for growth and repair. c) ...
Unit 1 – Chemical Basis of Life
Unit 1 – Chemical Basis of Life

... Why would giving synthetic insulin to people with Type 1 diabetes restore their glucose homeostasis? - In Type 1 diabetes, no insulin is made. When synthetic insulin is given to people with Type 1 diabetes, glucose can enter cells, so blood sugar levels return to normal. If you lived in Alaska for t ...
INTRODUCTORY QUESTIONS
INTRODUCTORY QUESTIONS

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Gymnázium, Brno, Slovanské nám. 7, WORKBOOK
Gymnázium, Brno, Slovanské nám. 7, WORKBOOK

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Dub The Heart
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ABC Anatomy coloring book By: Britney Rac
ABC Anatomy coloring book By: Britney Rac

... Aorta is the largest artery in the body, the aorta arises from the left ventricle of the heart, goes up (ascends) a little ways, bends over (arches), then goes down (descends) through the chest and through the abdomen to where ends by dividing into two arteries called the common iliac arteries that ...
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... Osmosis is the diffusion of water through a selectively permeable membrane. Something that selects or allows some things to pass through it and not others. Where two areas have different concentrations of the same thing. Produces copies of cells. Important in growth and repair. Exact copying of DNA. ...
Organ Systems
Organ Systems

... Cells  Tissue  Organ  Organ System Cells are the building blocks Groups of Cells of the same type are Tissue Groups of different types of Tissue working together are an Organ Groups of Organs working together are an Organ System (Body System) ...
PowerPoint - Bryn Mawr School Faculty Web Pages
PowerPoint - Bryn Mawr School Faculty Web Pages

... body tissues. Macrophages are important in immune response and cell stability because they mobilize in cell tissue to attack large foreign particles such as bacteria, yeast, and dead cells. Macrophages are derived from precursor cells called monocytes that first develop in bone marrow. Monocytes ent ...
The Human Body Review - Effingham County Schools
The Human Body Review - Effingham County Schools

... – Protection – keeps moisture in and pathogens out – Sensory input – nerves in skin allow you to sense your environment – Temperature regulation – sweat produced by glands in the skin cool the body – Waste removal – chemicals can be removed along with sweat ...
Life Science
Life Science

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Anatomy – structure
Anatomy – structure

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Invertebrates: Phylum Porifera and Phylum Cnidarians
Invertebrates: Phylum Porifera and Phylum Cnidarians

... of water thru the sponge. Each collar cell digests its own food. 2. ____________________ - specialized cells that make spicules 3. ____________________– Cells thru which water flows into the body of a sponge D. Respiration/ Circulation/ Excretion – ____________________ flow carries out all body func ...
PPT 1 MB embryology skeletal system
PPT 1 MB embryology skeletal system

... of the Skeletal System • The skeletal system develops from paraxial and lateral plate (somatic layer) mesoderm and from neural crest. Paraxial mesoderm forms a segmented series of tissue blocks on each side of the neural tube, known as somitomeres in the head region and somites from the occipital re ...
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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.
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