HD1
... epiblast (embryo) hypoblast (primitive endoderm) Formation of a 2-layered embryo within the inner cell mass. Organization of primitive endoderm. Schematic of expanded blastocyst with absence (a) and presence (b) of primitive endoderm (hypoblast) in a day 4 expanded blastocyst and day 6 hatched blast ...
... epiblast (embryo) hypoblast (primitive endoderm) Formation of a 2-layered embryo within the inner cell mass. Organization of primitive endoderm. Schematic of expanded blastocyst with absence (a) and presence (b) of primitive endoderm (hypoblast) in a day 4 expanded blastocyst and day 6 hatched blast ...
Step Up To: Psychology
... enriched-environment rats and the rats raised in bare cages. • B) Enriched-environment rats showed more stress and aggression. • C) Enriched-environment rats were able to ...
... enriched-environment rats and the rats raised in bare cages. • B) Enriched-environment rats showed more stress and aggression. • C) Enriched-environment rats were able to ...
The Nervous System and Senses
... • Some are sensitive to light tough • Some are sensitive to pain • Some are only sensitive to deep ...
... • Some are sensitive to light tough • Some are sensitive to pain • Some are only sensitive to deep ...
Biological Bases of Behavior: Neural Processing and the Endocrine
... • Larger body systems are made up of smaller and smaller sub systems. As these systems condense, they create specific organs, such as heart and lungs. These are then involved in larger systems, such as your circulatory system These systems then become part of the an even larger system, the individua ...
... • Larger body systems are made up of smaller and smaller sub systems. As these systems condense, they create specific organs, such as heart and lungs. These are then involved in larger systems, such as your circulatory system These systems then become part of the an even larger system, the individua ...
Third Week of Development
... • Cells of ^ epiblast migrate toward ^ primitive streak, upon their arrival, they detach from ^ epiblast & slip beneath it, this inward movement is known as invagination . • Once ^ cells have invaginated ,some displace ^ hypoblast, creating ^ embryonic endoderm. ...
... • Cells of ^ epiblast migrate toward ^ primitive streak, upon their arrival, they detach from ^ epiblast & slip beneath it, this inward movement is known as invagination . • Once ^ cells have invaginated ,some displace ^ hypoblast, creating ^ embryonic endoderm. ...
8_Development_of_Skeletal_System
... Spina Bifida Occulta – site is covered by skin and marked by tuft of hair; may be insignificant but is prone to trauma Spina Bifida Cystica – spina bifida invlolving herniation of meninges and/or spinal cord through defect in vertebral arch; coverd by skin or a thin membrane; may occur anywhere ...
... Spina Bifida Occulta – site is covered by skin and marked by tuft of hair; may be insignificant but is prone to trauma Spina Bifida Cystica – spina bifida invlolving herniation of meninges and/or spinal cord through defect in vertebral arch; coverd by skin or a thin membrane; may occur anywhere ...
WebQuest: The Structure of the Nervous System
... 3. Label the cerebellum on the diagram above. 4. What does the cerebellum do? 5. The limbic system is often referred to as the ____________ brain. 6. Where is the limbic system found? 7. List the function of each of the parts of the limbic system: Thalamus: Hypothalamus: ...
... 3. Label the cerebellum on the diagram above. 4. What does the cerebellum do? 5. The limbic system is often referred to as the ____________ brain. 6. Where is the limbic system found? 7. List the function of each of the parts of the limbic system: Thalamus: Hypothalamus: ...
Products of Maternal Effect Genes establish gradients in the egg
... • Polyspermy = fertilization of egg by more than one sperm • Blocked in two ways – Fast block to polyspermy: Change in charge across the egg plasma membrane, mediated by influx of sodium ions – Slow block to polyspermy: cortical granules release enzymes and waterabsorbing materials to form fertiliza ...
... • Polyspermy = fertilization of egg by more than one sperm • Blocked in two ways – Fast block to polyspermy: Change in charge across the egg plasma membrane, mediated by influx of sodium ions – Slow block to polyspermy: cortical granules release enzymes and waterabsorbing materials to form fertiliza ...
Psychology Chapter 2 Notes CENTRAL – The brain and spinal
... convulsions and possible death. Black widow spider venom is an agonist for acetylcholine. Acetylcholine is also found in the hippocampus, an area of the brain that is responsible for forming new memories, and low levels of acetylcholine have been associated with Alzheimer’s disease, the most common ...
... convulsions and possible death. Black widow spider venom is an agonist for acetylcholine. Acetylcholine is also found in the hippocampus, an area of the brain that is responsible for forming new memories, and low levels of acetylcholine have been associated with Alzheimer’s disease, the most common ...
Nervous System Lect/96
... a). multipolar neurons, which have more than two cell processes, one process being the axon and the others dendrites; b). bipolar neurons, with one dendrite entering and one axon leaving the cell body c). pseudounipolar (unipolar) neurons, which have a single process extending from the cell body, wh ...
... a). multipolar neurons, which have more than two cell processes, one process being the axon and the others dendrites; b). bipolar neurons, with one dendrite entering and one axon leaving the cell body c). pseudounipolar (unipolar) neurons, which have a single process extending from the cell body, wh ...
Cell body
... Schwann cells - supporting cells of the PNS that myelinate axons. • Myelin sheath – whitish lipoprotein that surrounds and insulates the axon (nerve fiber) • Neurilemma - external layer containing bulk of cytoplasm with nucleus and organelles Schwann cell ...
... Schwann cells - supporting cells of the PNS that myelinate axons. • Myelin sheath – whitish lipoprotein that surrounds and insulates the axon (nerve fiber) • Neurilemma - external layer containing bulk of cytoplasm with nucleus and organelles Schwann cell ...
Motor control
... where simple actions and muscle strength are intact. These patients tend to fail at miming, but have limited success when the object is actually in front of them. – Ideomotor apraxia: Patients seem to understand what they need to do, but aren’t able to do it. – Ideational apraxia: Patient’s knowledg ...
... where simple actions and muscle strength are intact. These patients tend to fail at miming, but have limited success when the object is actually in front of them. – Ideomotor apraxia: Patients seem to understand what they need to do, but aren’t able to do it. – Ideational apraxia: Patient’s knowledg ...
Document
... – Recognizes certain neurotransmitters, thus allowing it to begin a postsynaptic potential in the dendrite ...
... – Recognizes certain neurotransmitters, thus allowing it to begin a postsynaptic potential in the dendrite ...
Document
... • Largest part of the human brain • Outer layer of gray matter is the cerebral cortex; made up of lobes; composed mainly of dendrites and cell bodies of neurons • Interior of the cerebrum composed mainly of white matter (that is, nerve fibers arranged in bundles called tracts) • Functions of the cer ...
... • Largest part of the human brain • Outer layer of gray matter is the cerebral cortex; made up of lobes; composed mainly of dendrites and cell bodies of neurons • Interior of the cerebrum composed mainly of white matter (that is, nerve fibers arranged in bundles called tracts) • Functions of the cer ...
Norepinephrine as a neurotransmitter
... • They have effects similar to that of THC • Short fatty acids produced in the dendrites and cell bodies and released directly from the plasma membrane (no vesicle) ...
... • They have effects similar to that of THC • Short fatty acids produced in the dendrites and cell bodies and released directly from the plasma membrane (no vesicle) ...
The Neural Control of Movement
... Neural activation plays in changing muscle fiber characteristics(Buller & Lewis 1965) ...
... Neural activation plays in changing muscle fiber characteristics(Buller & Lewis 1965) ...
chapter29_Sections 6
... • Action potentials cannot pass directly from a neuron to another cell • Chemicals relay signals from a neurons (presynaptic cell) to another neuron, muscle or gland (postsynaptic cell) across a fluid-filled synaptic cleft • synapse • Region where a neuron’s axon terminals transmit signals to anothe ...
... • Action potentials cannot pass directly from a neuron to another cell • Chemicals relay signals from a neurons (presynaptic cell) to another neuron, muscle or gland (postsynaptic cell) across a fluid-filled synaptic cleft • synapse • Region where a neuron’s axon terminals transmit signals to anothe ...
Systemogenesis.
... initiated by overactivation of glutamate receptors, and an increased intracellular concentration of Ca2+. Increased concentration of Ca2+ causes transcriptional activiation of so-called “cell-death genes”. Immediate-early genes play a central role in converting extracellular signals into long-lastin ...
... initiated by overactivation of glutamate receptors, and an increased intracellular concentration of Ca2+. Increased concentration of Ca2+ causes transcriptional activiation of so-called “cell-death genes”. Immediate-early genes play a central role in converting extracellular signals into long-lastin ...
Biology 3201
... This causes outside of membrane to have an abundance of + charges compared to inside. The inside of the membrane is negative compared to the outside (this is helped by the (-)’ly charged proteins, etc. on the inside) The “sodium-potassium” pump pulls 2 K+ ions in for 3 Na+ ions sent out. This furthe ...
... This causes outside of membrane to have an abundance of + charges compared to inside. The inside of the membrane is negative compared to the outside (this is helped by the (-)’ly charged proteins, etc. on the inside) The “sodium-potassium” pump pulls 2 K+ ions in for 3 Na+ ions sent out. This furthe ...
Central nervous system
... • Sensors detect external stimuli and internal conditions and transmit information along sensory neurons • Sensory information is sent to the brain or ganglia, where interneurons integrate the information • Motor output leaves the brain or ganglia via motor neurons, which trigger muscle or gland ac ...
... • Sensors detect external stimuli and internal conditions and transmit information along sensory neurons • Sensory information is sent to the brain or ganglia, where interneurons integrate the information • Motor output leaves the brain or ganglia via motor neurons, which trigger muscle or gland ac ...
Ch6 - Unit3Biology
... vesicles (on the end of axons only!) • diffuse across the synapse and attach to receptors on the postsynaptic membrane • stimulate another neuron or effector • last for a very short time only (enzymes produced by muscles tissue inactive the substances for example) Example: acetycholine ...
... vesicles (on the end of axons only!) • diffuse across the synapse and attach to receptors on the postsynaptic membrane • stimulate another neuron or effector • last for a very short time only (enzymes produced by muscles tissue inactive the substances for example) Example: acetycholine ...
Neurons and Neurotransmitters
... Sensory Neurons – take info from the world Inter neurons make the connection between motor and sensory neurons – they do the thinking makes the connection between sensation and action Motor neurons - dictate to the muscles ...
... Sensory Neurons – take info from the world Inter neurons make the connection between motor and sensory neurons – they do the thinking makes the connection between sensation and action Motor neurons - dictate to the muscles ...