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Physiology - Cloudfront.net
Physiology - Cloudfront.net

... progestins. All three are found in both males and females, but each in varying amounts. ...
Systems Study Questions
Systems Study Questions

... 89. Insulin is released when glucose levels are high, which causes glucose to be stored as glycogen. When glucose levels decline, glucagon is released, which causes stored glycogen to break up into glucose. 90. Antidiuretic hormone (ADH) 91. ADH is released when water levels drop in blood, signaling ...
The Deuterostomes Deuterostomes Why are Echinoderms
The Deuterostomes Deuterostomes Why are Echinoderms

... Phylum Chordata ...
Objectives 36 - u.arizona.edu
Objectives 36 - u.arizona.edu

... - consistent with function of providing coordinating signals for movement - receives sensory inputs from many areas of body (as well as visual and vestibular sensory info) - cortex associated with movement projects to cerebellum - output of cerebellum projects to motor areas of cerebral cortex (via ...
Segmented Worms & Mollusks
Segmented Worms & Mollusks

... Bilateral symmetry Coelomate 2 body openings “tube within a tube” Setae - bristles to help them move through soil • Found in moist environments ...
1 - Quia
1 - Quia

... V, VI, VII, and VIII. d) medulla oblongata- Enlarged portion of the spinal cord in the cranium after it enters the foramen magnum of the occipital bone; the lower potion of the brainstem. Controls vital functions such as breathing, heart rate, blood pressure, and coughing. Is the site of cranial ner ...
Human Body System Review
Human Body System Review

... Taste-taste occurs because of taste buds with receptor and supporting cells. These determine flavor and palatability. The palate is at the top of the mouth between sinus and tongue. Teeth help tear, chew and grind food. Taste is affected by smell and primary taste buds are sweet, sour salty and bitt ...
HUMAN REPRODUCTION BIOLOGY 269
HUMAN REPRODUCTION BIOLOGY 269

... urinary, reproductive, circulatory systems. Ectoderm will form skin and nervous system ...
Biology\Fish Unit
Biology\Fish Unit

... •Compare and contrast features of organisms that make them unique or help place them in a particular class. •Identify body structures (anatomy) and functions (physiology) for each type of vertebrate. •Differentiate between types of births: oviparous, ovoviviparous, and viviparous. ...
CRAYFISH DISSECTION
CRAYFISH DISSECTION

... Makes bile; finishes digestion; absorbs nutrients ...
Microscopic Anantomy of Cerebral Cortex
Microscopic Anantomy of Cerebral Cortex

... contains axonal ramifications of afferent fibers, such as sensory axons from the thalamus. ...
crayfish dissection - Solon City Schools
crayfish dissection - Solon City Schools

... Makes bile; finishes digestion; absorbs nutrients ...
Internal Anatomy
Internal Anatomy

... • Many nerves leave from each ganglion • Where do you think these nerves go? • Statocysts are organs used for balance. They are filled with sand and sensory bristles. They are in the base segments of the antennae. ...
Human Body Systems
Human Body Systems

... support to the body, helps it move, and protects its organs; includes the bones, cartilage, and ligaments (14) spinal cord (SPYE-nuhl KORD) a long, thick cord of nerve tissue that connects most nerves to the brain; runs from the brain down through the center of the spine (19) ...
Circulatory System: Function – delivering and removing materials
Circulatory System: Function – delivering and removing materials

... 1) Covers body and prevents water loss 2) Protects body from injury and infection 3) Regulates Body Temperature 4) Eliminates waste 5) Gathers info about the environment 6) Produces Vitamin D Major Organs – - skin - hair - nails ...
Title: Human Body Date
Title: Human Body Date

... C. ESP D. Topography 33. Learning external landmarks - such as joints, notches, and bumps on bones - that aid in locating body structures is called A. Topography B. Visualizing C. Body Scanning D. None of the above 34. A group of organs that will carry out a specific function in the body is known a ...
The Mechanical Senses
The Mechanical Senses

... Theories of Pitch Perception • The current pitch theory combines modified versions of both the place theory and frequency theory: – Low frequency sounds best explained by the frequency theory. – High frequency sounds best explained by place theory. ...
Crayfish Dissection Lab
Crayfish Dissection Lab

... and give you a better understanding of the anatomy of invertebrate animals in general. ...
Body System Notes -for website
Body System Notes -for website

... Interesting Fact: It takes about 20 seconds for a red blood cell to circle the whole body. ...
Biology Revision PowerPoint
Biology Revision PowerPoint

... horse and donkey = mule 2. Ring Species Sometimes there are a chain of neighbours that can all breed with their neighbour but the ones at either end can’t. These are called a ring species. ...
4. The embryo of flatworms has a third germ tissue
4. The embryo of flatworms has a third germ tissue

... Cnidarians had a nerve net for conducting impulses, but the platyhelminthes have centralized the nervous system into two longitudinal nerve cords. (faster transmission of nerve impulses). -Well-developed third tissue layer called the mesoderm between the ectoderm and endoderm. ...
Phylum Annelida
Phylum Annelida

... • Complete digestive tract with mouthparts as modified appendages • Open circulatory system with dorsal contractile heart ...
Topic 8 Unit Notes 1
Topic 8 Unit Notes 1

... waste and nutrients to and from the body. Blood serves as the system of transport, and it connects to all other body systems. White blood cells defend the body from disease. The heart is the pump that keeps this transport system moving through veins, arteries and capillaries. Respiratory System uses ...
Human Body System Layered Book
Human Body System Layered Book

... completion of this section you will be turning in a flipbook that covers 8 human body systems. These include: Nervous System, Skeletal System, Integumentary System, Digestive System, Respiratory System, Circulatory System, Excretory System, and Immune System. The Reproductive System can be added for ...
File
File

... cavities-collects back in large sinus near heart-re-enters heart ...
< 1 ... 23 24 25 26 27 28 29 30 31 ... 61 >

Central nervous system



The central nervous system (CNS) is the part of the nervous system consisting of the brain and spinal cord. The central nervous system is so named because it integrates information it receives from, and coordinates and influences the activity of, all parts of the bodies of bilaterally symmetric animals — that is, all multicellular animals except sponges and radially symmetric animals such as jellyfish — and it contains the majority of the nervous system. Arguably, many consider the retina and the optic nerve (2nd cranial nerve), as well as the olfactory nerves (1st) and olfactory epithelium as parts of the CNS, synapsing directly on brain tissue without intermediate ganglia. Following this classification the olfactory epithelium is the only central nervous tissue in direct contact with the environment, which opens up for therapeutic treatments. The CNS is contained within the dorsal body cavity, with the brain housed in the cranial cavity and the spinal cord in the spinal canal. In vertebrates, the brain is protected by the skull, while the spinal cord is protected by the vertebrae, both enclosed in the meninges.
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