Essay about The Human Body: The Muscular System - 543.
Human body has some 200 types of cells, e.g., erythrocytes, leucocyte types, epithelial cell types, muscle cells, nerve cells, fat cells, cartilage cells, bone cells, connective tissue cells, gland cells, germinal cells, pigment cells, etc. Cells are grouped into tissues, tissues into organs and organs into organ systems.
Human beings usually have 46 different chromosomes; other species can have as little as 2 chromosomes or as many as 200. Most species contain between 10 and 50 chromosomes. (Solomon et al 2002). When cells reach maturity, they must either stop growing and remain as they are, or divide and reproduce themselves.
The smallest muscle in the body is the stapedius, deep in the ear. It is only 5mm long and thinner than cotton thread. It is involved in hearing. A person has around 4-5 litres of blood. The blood is the transport system by which oxygen and nutrients reach the body's cells.
Human Body System Interaction. All the systems in the human body are vital to our survival and well-being. If you take away the functions of just one of these systems our whole body will cease to work properly. The main systems of the human body are the nervous, endocrine respiratory, circulatory, immune, digestive, excretory, skeletal, muscular, and the reproductive systems.
There are more than 200 bones in an adult person. These bones are made up of calcium and phosphorus. The box like skull protects the brain. The muscles constitute the flesh.
Chapter 1: intro to the human body - Athabasca anatomy and physiology 235 - Chapter 1 notes 3689 words - 15 pages and glucose. Cellular level Cell: Molecules combine to form cells, the basic structural and functional units of an organism that are composed of chemicals. Cells are the smallest living units in the human body.
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Blood Cells And The Human Body Essay. 700 Words 3 Pages. Show More. Although there are quadrillions of cells in the human body, there is on average 30 trillion red blood cells. There 's many qualities that make red blood cells different from the other cells. First of all, red blood cells are used to carry oxygen from the lungs to other parts.
Describe the four basic human body structure units and their functions The four basic human body structure units and their functions are: Cells, Tissues, Organs, and Systems. Cells Humans and all living things are made up of about 100 trillion small cells that can only be seen via a microscope.
The human brain is a big, intricate—yet delicate, structure in the human body. It is the key structure in cognitive function. Any damage to the brain does not only “erase” memories but also may “deceive” the brain to erroneously remember a new object as being familiar (2010).
The human body can be compared to a machine, Just as an engine burns up coal or oil in order to generate its energy, so the human body requires food in order to produce the forces which keep the heart beating, the lungs breathing and the limbs moving.
Unit 10: Human Biology Vocabulary. STUDY. Flashcards. Learn. Write. Spell. Test. PLAY. Match.. the part of the human body cavity that is between the neck and the abdomen and that contains the heart and the lungs.. the junction at which the end of the axon of a neuron meets the end of a dendrite or the cell body of another neuron or meets.
The cell is the basic living unit of the human body—indeed, of all organisms. The human body consists of trillions of cells, each capable of growth, metabolism, response to stimuli, and, with some exceptions, reproduction. Although there are some 200 different types of cells in the body, these can be grouped into four basic classes.
