sobota, 21 października 2017
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Anatomia człowieka (886)

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! EN_90257973_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Fertilisation. Computer artwork of sperm attempting to penetrate a human egg (round). Each sperm (spermatozoon) has a rounded head and a long tail with which it swims. Women usually release one egg (ovum) per month, whereas men release millions of sperm in each ejaculation. Only one of these sperm can penetrate the egg's thick outer layer (zona pellucida) and fertilise it. Fertilisation occurs when the sperm's genetic material (deoxyribonucleic acid, DNA) fuses with the egg's DNA. When this occurs the egg forms a barrier to other sperm.
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! EN_90263214_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Human sperm. Computer artwork of human sperm cells. Each sperm (spermatozoan) has a rounded head and a long tail which it uses to both swim and burrow into an egg.
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! EN_90245768_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Amygdala in the brain. Computer artwork of a person's head showing the brain inside. The highlighted area shows the two amygdala (amygdalae). The amygdalae are almond-shaped groups of nuclei located deep within the medial temporal lobes of the brain. They are part of brain's limbic system, a primitive part of the brain involved in emotions, learning and the formation of memories. The amygdalae play a role in memory and emotional reaction - particularly the memory of those reactions.
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! EN_90245768_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Amygdala in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the two amygdala (amygdalae). The amygdalae are almond-shaped groups of nuclei located deep within the medial temporal lobes of the brain. They are part of brain's limbic system, a primitive part of the brain involved in emotions, learning and the formation of memories. The amygdalae play a role in memory and emotional reaction - particularly the memory of those reactions.
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! EN_90249070_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Brainstem. Computer artwork of a person's head showing the brain inside. The highlighted area shows the brainstem. The brainstem connects the brain to the spinal cord. It consists of the medulla oblongata, pons and midbrain. It controls automatic functions, sleep and arousal, and relays messages from the brain to the spinal cord.
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! EN_90250899_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Cerebellum in the brain. Computer artwork of a person's head showing the brain inside. The highlighted area shows the cerebellum. The cerebellum plays an important role in the integration of sensory perception, coordination and voluntary motor control (movement).
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! EN_90250899_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Cerebellum in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the cerebellum. The cerebellum plays an important role in the integration of sensory perception, coordination and voluntary motor control (movement).
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! EN_90251568_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Cingulate gyrus in the brain. Computer artwork of a person's head showing the brain inside. The highlighted area shows the cingulate gyrus. The cingulate gyrus is part of brain's limbic system, a primitive part of the brain involved in emotions, learning and the formation of memories.
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! EN_90251568_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Cingulate gyrus in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the cingulate gyrus. The cingulate gyrus is part of brain's limbic system, a primitive part of the brain involved in emotions, learning and the formation of memories.
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! EN_90253386_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Corpus callosum in the brain. Computer artwork of a person's head showing the brain inside. The highlighted area shows the Corpus callosum. The Corpus callosum is found in the longitudinal fissure that connects the left and right hemispheres of the brain. It facilitates communication between the two hemispheres and is the largest white matter structure (consisting mostly of myelinated axons) in the brain.
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! EN_90253386_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Corpus callosum in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the Corpus callosum. The Corpus callosum is found in the longitudinal fissure that connects the left and right hemispheres of the brain. It facilitates communication between the two hemispheres and is the largest white matter structure (consisting mostly of myelinated axons) in the brain.
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! EN_90258943_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Fornix in the brain. Computer artwork of a person's head showing the brain inside. The highlighted area (centre) shows the fornix. The fornix is a C-shaped bundle of nerve fibres (axons) in the brain that carry signals from the hippocampus to the mammillary bodies and septal nuclei. The fibres begin in the hippocampus on each side of the brain (where they are known as the fimbria) and come together in the midline of the brain, forming the body of the fornix.
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! EN_90258943_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Fornix in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the fornix. The fornix is a C-shaped bundle of nerve fibres (axons) in the brain that carry signals from the hippocampus to the mammillary bodies and septal nuclei. The fibres begin in the hippocampus on each side of the brain (where they are known as the fimbria) and come together in the midline of the brain, forming the body of the fornix.
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! EN_90259479_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Frontal lobe in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the left frontal lobe. The cerebrum (telencephalon) of the brain is divided into four lobes (temporal, occipital, frontal and parietal), mirrored on each hemisphere. The frontal lobes are considered the emotional control centre and home to a person's personality. They are involved in conscious thought and mood, motor function, problem solving, spontaneity, memory, language, judgement, impulse control, and social and sexual behaviour.
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! EN_90259480_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Frontal lobes in the brain. Computer artwork of a person's head showing the brain inside. The highlighted area shows the frontal lobes. The cerebrum (telencephalon) of the brain is divided into four lobes (temporal, occipital, frontal and parietal), mirrored on each hemisphere. The frontal lobes are considered the emotional control centre and home to a person's personality. They are involved in conscious thought and mood, motor function, problem solving, spontaneity, memory, language, judgement, impulse control, and social and sexual behaviour.
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! EN_90260857_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Globus pallidus in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the globus pallidus. The globus pallidus is part of the basal ganglia system situated at the base of the forebrain. The basal ganglia are responsible for processing information from much of the rest of the brain, which they then pass to the thalamus, which modulates the information.
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! EN_90262616_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Hippocampus in the brain. Computer artwork of a person's head showing the brain inside. The highlighted area shows the hippocampus, part of brain's limbic system - a primitive part of the brain involved in emotions, learning and the formation of memories. The hippocampus is located inside the medial temporal lobe and plays an important role in long-term memory, and spatial memory and navigation.
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! EN_90262616_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Hippocampus in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the hippocampus, part of brain's limbic system - a primitive part of the brain involved in emotions, learning and the formation of memories. The hippocampus is located inside the medial temporal lobe and plays an important role in long-term memory, and spatial memory and navigation.
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! EN_90263158_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Human brain anatomy. Computer artwork of a person's head showing the brain with the right hemisphere removed. The brainstem can be seen (bottom left) along with the cerebellum to its left and the hippocampus above them.
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! EN_90263158_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Human brain anatomy. Computer artwork of a person's head showing the brain with the right hemisphere removed. The following regions can be seen: frontal lobe (blue, upper right), parietal lobe (yellow, upper left), occipital lobe (green, left), temporal lobe (peach, upper centre), somatosensory cortex (red, top), medulla oblongata (brown, bottom left), cerebellum (beige, lower left), pons (light beige, lower centre) hippocampus (blue, centre left), midbrain (purple, centre), thalamus (yellow, centre), corpus callosum (white, upper centre), hypothalamus (blue, centre), optic nerves (pink, centre right), and the pituitary gland (red, centre).
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