Distention for many involuntary digestive movements. c. What do ANS neurons regulate with regard to mechanical digestion? What are the possible responses? The ANS neurons regulate involuntary smooth muscular movements. The response is either increased or decreased contraction of the muscularis.
P2 There are two different types of epithelial tissue these are simple and compound. Simple Epithelium- this type of epithelium tissue is from an animal consisting of one of more layers of closely packed cells. The cells can vary in structure depending on their function which may be protective, secretory or absorptive. This epithelium tissue covers external and internal surfaces of the body. Compound Epithelium – this type of epithelial tissue is made to withstand wear and tear.
Unit 13 P2 Describe how materials of different states pass into and out of cells. The cells plasma membrane is not only used for structural purposes. Its functions to allow certain substances in and out of the cell. It can allow other substances into the cell against the concentration gradient or allow other substances (for example waste) out of the cell. There are two ways that the cell can transport substances; passive transport processes and active transport processes.
More information about scoring 1. Match the structure with its function. Option Your Answer 1.1 Correct occipital lobe C. vision 1.2 Correct pineal gland B. secretes melatonin; involved in the body clock 1.3 Correct medulla oblongata D. contains vital nuclei for ventilation, blood pressure, and heart activity 1.4 Correct postcentral gyrus F. primary somatic sensory cortex 1.5 Correct parietal lobe E. body sense, perception, and speech 1.6 Correct vagus nerve A. controls organs; main parasympathetic nerve 2. Match the structure with its function. Option Your Answer 2.1 Correct thalamus B. processing information going to cerebrum 2.2 Correct cerebellum D. motor coordination, balance 2.3 Correct corticospinal tract C. carries direct orders from cerebrum to ventral horn motor
It functions to supply the second half of the large intestine. 15. What is the function of the cystic artery? It functions to supply oxygenated blood to the gallbladder and cystic duct. 16.
There are several types – what are they and how do they differ? * In endocytosis, the cell takes in macromolecules by forming vesicles from the plasma
Mitochondria Mitochondria Nucleus Nucleus Lysosome Lysosome Golgi apparatus Golgi apparatus Cell membrane Cell membrane Endoplasmic reticulum (Smooth and rough) Endoplasmic reticulum (Smooth and rough) Cytoplasm Cytoplasm Cell Membrane A cell membrane of the cell. It gives the cell its shape, it is the outer covering of the cell made up from phospho-lipid-protein bi-layer, which allows the materials to enter and to exit. The cell membrane is not one solid piece. It is made of different pieces. Compounds called proteins and phospholipids make up most of the cell membrane.
Epithelial tissues line the cavities and surfaces of structures throughout the body, and also form many glands. Functions of epithelial cells include secretion, selective absorption, protection, cellular transport and detection of sensation. Epithelial layers are avascular, meaning they contain no blood vessels and rely on underlying vascular tissues to absorb nutrients from. Epithelia can also be organized into clusters of cells that function as exocrine and endocrine glands. Exocrine and endocrine epithelial cells are highly vascular.
SNS-motor portion under voluntary control ANS-motor portion under involuntary control 6 what are the functions of the dendrites and the cell body of a neuron? -dendrites collect signals the cell body of a neuron lacks centrioles 7 which neuroglia are CNS and PNS ? functions? - astrocyes- CNS-maintain chemical environment , support and nourish oligodendrocyes-produce myelin sheath around adjacent azons microglia-migrating phagocytes ependymal cells-form and circulate cerebrospinal fluid PNS Satellite cells-support cells within PNS ganglia Schwann cells- produce myelin sheath around axons 8. function of myelin? Which neuroglia produce myelin?
SER lacks ribosomes and participates in lipid synthesis and detoxification. The Golgi apparatus is a system of membranous cisternae and vesicles arranged in stacks near the nucleus. The Golgi processes and modifies sugar side chains on proteins that are being secreted or destined for the plasma membrane or other membrane-bound organelles like the lysosome. Therefore, the Golgi apparatus is particularly prominent in cells synthesizing large