Cells - Open Equal Free
... The Golgi body is an organelle that helps cells use energy. It is made of flat membrane-enclosed discs that lie close together. Not everything that comes into the cell is in the best form to be used. It is similar to how humans cook food; the cell needs to change its food to eat it. The Golgi body’ ...
... The Golgi body is an organelle that helps cells use energy. It is made of flat membrane-enclosed discs that lie close together. Not everything that comes into the cell is in the best form to be used. It is similar to how humans cook food; the cell needs to change its food to eat it. The Golgi body’ ...
Cardiovascular system
... 8. What is the prevalent cell type of the tunica media and how are these cells arranged?. ...
... 8. What is the prevalent cell type of the tunica media and how are these cells arranged?. ...
Flame Cells - Cloudfront.net
... They are carnivores and scavengers. They digest food through diffusion ...
... They are carnivores and scavengers. They digest food through diffusion ...
Immune system notes
... attack pathogens, but don’t “remember” for next time leukocytes phagocytic white blood cells macrophages, neutrophils, natural killer cells ...
... attack pathogens, but don’t “remember” for next time leukocytes phagocytic white blood cells macrophages, neutrophils, natural killer cells ...
The Immune System PowerPoint
... § Complement system ~20 proteins circulating in blood plasma u attack bacterial & fungal cells u ...
... § Complement system ~20 proteins circulating in blood plasma u attack bacterial & fungal cells u ...
II. Types of Tissues
... F. The lining of the urinary bladder is transitional epithelium, whose structure suits its function. 1. It consists of several layers of cuboidal cells and is able to stretch. G. When an epithelium secretes a product, it is said to be glandular. 1. A gland can be a single epithelial cell or many cel ...
... F. The lining of the urinary bladder is transitional epithelium, whose structure suits its function. 1. It consists of several layers of cuboidal cells and is able to stretch. G. When an epithelium secretes a product, it is said to be glandular. 1. A gland can be a single epithelial cell or many cel ...
Histology Of Respiratory System
... • After the air reaches the bronchioles: – The bronchioles end in sacs known as alveoli. They act as balloons that inflate when breathing in. – Gas exchange occurs at the alveoli. The concentration of oxygen is greater in the alveoli during inspiration then in the capillaries so the oxygen will diff ...
... • After the air reaches the bronchioles: – The bronchioles end in sacs known as alveoli. They act as balloons that inflate when breathing in. – Gas exchange occurs at the alveoli. The concentration of oxygen is greater in the alveoli during inspiration then in the capillaries so the oxygen will diff ...
APSpring14_142E1Aans..
... The shearing of the stereocilia mechanically open K+ channels that depolarize inner hair cells The shearing of the stereocilia mechanically open Ca++ channels that depolarize inner hair cells The shearing of the stereocilia mechanically open K+ channels that depolarize outer hair cells The shearing ...
... The shearing of the stereocilia mechanically open K+ channels that depolarize inner hair cells The shearing of the stereocilia mechanically open Ca++ channels that depolarize inner hair cells The shearing of the stereocilia mechanically open K+ channels that depolarize outer hair cells The shearing ...
Lecture 12
... Oogenesis: production of eggs (ova) •Stem cells = oogonia undergo Mitosis –All of female’s oogonia produced while fetus –Oogonia become oocytes •Oogonia begin Meiosis I are called primary oocytes (2n) –Meiosis I is stalled before birth and until ovulation ...
... Oogenesis: production of eggs (ova) •Stem cells = oogonia undergo Mitosis –All of female’s oogonia produced while fetus –Oogonia become oocytes •Oogonia begin Meiosis I are called primary oocytes (2n) –Meiosis I is stalled before birth and until ovulation ...
224Lecture02-2010-Sumida
... •Gas transfer takes place across wall. •Nutrient transfer takes place across walls. •Blood from capillaries to venules. ...
... •Gas transfer takes place across wall. •Nutrient transfer takes place across walls. •Blood from capillaries to venules. ...
Animal Systems - Savita Pall and Chemistry
... The following table lists some organ systems, their functions, and the organs involved: Musculoskeletal ...
... The following table lists some organ systems, their functions, and the organs involved: Musculoskeletal ...
Integumentary system
... – keratinized “shinglelike” cells – water resistant – 20-30 cell layers thick – 25-45 days ...
... – keratinized “shinglelike” cells – water resistant – 20-30 cell layers thick – 25-45 days ...
S1 – Body Systems Summary Notes
... The sperm from the testes are deposited into the vagina during sexual intercourse. The sperm then swim up the cervix and uterus and along the oviduct where it meets the egg. Fertilisation takes place in the oviduct. Fertilisation is the fusing together of the sperm nucleus and the egg nucleus. The f ...
... The sperm from the testes are deposited into the vagina during sexual intercourse. The sperm then swim up the cervix and uterus and along the oviduct where it meets the egg. Fertilisation takes place in the oviduct. Fertilisation is the fusing together of the sperm nucleus and the egg nucleus. The f ...
Excretion - JLooby Biology
... Plant cells are protected from bursting or taking in excess water by their cell walls Animal cells do not have cell walls and WILL burst if they absorb too much water. Excess water is lost from the respiratory surfaces of animals In mammals some is lost through the skin as sweat Most of the regulati ...
... Plant cells are protected from bursting or taking in excess water by their cell walls Animal cells do not have cell walls and WILL burst if they absorb too much water. Excess water is lost from the respiratory surfaces of animals In mammals some is lost through the skin as sweat Most of the regulati ...
Sample question
... enzymes a long time to work at digesting it. It also has large storage niche (M) compartments to allow more time for digestion of the grass. The earthworm has a tubular gut because it needs to be thin to burrow underground, but still be long enough to allow for digestion of food and absorption of nu ...
... enzymes a long time to work at digesting it. It also has large storage niche (M) compartments to allow more time for digestion of the grass. The earthworm has a tubular gut because it needs to be thin to burrow underground, but still be long enough to allow for digestion of food and absorption of nu ...
Animal Body Systems
... In all animals except sponges, the zygote (fertilized egg cell) undergoes cell divisions that form a hollow ball of cells called a blastula. ...
... In all animals except sponges, the zygote (fertilized egg cell) undergoes cell divisions that form a hollow ball of cells called a blastula. ...
animals
... In all animals except sponges, the zygote (fertilized egg cell) undergoes cell divisions that form a hollow ball of cells called a blastula. ...
... In all animals except sponges, the zygote (fertilized egg cell) undergoes cell divisions that form a hollow ball of cells called a blastula. ...
CH 16 Sense Organs A aand P 2016
... fibers which merges with the cochlear nerve and then VIII - which leads to 4 vestibular nuclei in the pons and medulla - they communicate with each other to learn about position and motion of the body - then send info to the cerebellum, thalamus, and vestibulospinal tract to control balancebalance - ...
... fibers which merges with the cochlear nerve and then VIII - which leads to 4 vestibular nuclei in the pons and medulla - they communicate with each other to learn about position and motion of the body - then send info to the cerebellum, thalamus, and vestibulospinal tract to control balancebalance - ...
Open Circulatory System
... In this kind of system, there’s one tube that blood flows through and a simple heart. After blood leaves the tube, it flows freely inside the creature until it finds its way back to the tube. ...
... In this kind of system, there’s one tube that blood flows through and a simple heart. After blood leaves the tube, it flows freely inside the creature until it finds its way back to the tube. ...
NAME KS3 revision booklet Biology
... almost all of its cells. Genetic information is passed from parents to offspring during reproduction. In sexual reproduction, a male sex cell or gamete (e.g. a sperm cell) and a female gamete (e.g. an egg cell) fuse. This fusing (joining together) produces a fertilised egg cell which grows into the ...
... almost all of its cells. Genetic information is passed from parents to offspring during reproduction. In sexual reproduction, a male sex cell or gamete (e.g. a sperm cell) and a female gamete (e.g. an egg cell) fuse. This fusing (joining together) produces a fertilised egg cell which grows into the ...
CN 1 Olfactory Nerve Smell CN2 Optic Nerve Sight CN3 Oculomotor
... - BBB: Functional barrier between the blood and the interstitial fluid of the brain, which is very much like cerebral spinal fluid. What it really is, are tight junctions between capillary endothelial cells. - So the brain has just as much or more vascularization then any other organ in the body. Hu ...
... - BBB: Functional barrier between the blood and the interstitial fluid of the brain, which is very much like cerebral spinal fluid. What it really is, are tight junctions between capillary endothelial cells. - So the brain has just as much or more vascularization then any other organ in the body. Hu ...
CH 16 Sense Organs A aand P 2017
... fibers which merges with the cochlear nerve and then VIII - which leads to 4 vestibular nuclei in the pons and medulla - they communicate with each other to learn about position and motion of the body - then send info to the cerebellum, thalamus, and vestibulospinal tract to control balance - thalam ...
... fibers which merges with the cochlear nerve and then VIII - which leads to 4 vestibular nuclei in the pons and medulla - they communicate with each other to learn about position and motion of the body - then send info to the cerebellum, thalamus, and vestibulospinal tract to control balance - thalam ...
Chapter 3-2
... Most numerous white blood cells (60-70%) Granular cytoplasm but granules not easily ...
... Most numerous white blood cells (60-70%) Granular cytoplasm but granules not easily ...
Biology 102 Exam II
... Phylum Annelida has a fundamentally important characteristic, they were the first to show real serial repetition of body parts called. What do we call this? The Water Vascular System is a unique characteristic of which Phylum? What are some characteristics shared by all chordates? Do animal cells ha ...
... Phylum Annelida has a fundamentally important characteristic, they were the first to show real serial repetition of body parts called. What do we call this? The Water Vascular System is a unique characteristic of which Phylum? What are some characteristics shared by all chordates? Do animal cells ha ...
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.