Health, 26.09.2019 11:00 lrasanaoaksandfurana

Module 2 lesson review (50 pts)
directions: after reading the lesson material, answer each question using complete sentences unless otherwise stated.

lesson 2.1 – body systems
2.1 discover 1: organization of the body (8 pts)
1. what are the four levels of organization in an organism?
2. what are the four types of tissue that make up the human body?
3. describe epithelial tissue.
4. give two examples of connective tissue.

2.1 discover 2: take a closer look: muscular system (8 pts)
1. what are muscle fibers?
2. describe voluntary muscle.
3. which two of three types of muscles in the body are involuntary?
4. distinguish between skeletal muscle and smooth muscle.

2.1 discover 3: take a closer look: skeletal system (8 pts)
1. are bones a living organ?
2. what are the three components of the skeletal system?
3. list four functions of the skeletal system.
4. name and describe the two types of tissue that make up a bone.

2.1 discover 4: take a closer look: how they work together (8 pts)
1. how are skeletal muscles attached to the skeleton?
2. explain why many skeletal muscles must work in opposing pairs.
3. list three functions of smooth muscles.
4. what happens when cardiac muscle contracts?

lesson 2.2 – more body systems
2.2 discover 1: take a closer look: cardiovascular system (8 pts)
1. list three components of the cardiovascular system.
2. list the main functions of the cardiovascular system.
3. why does each cell in your body need oxygen?
4. complete this sentence: carry blood full of oxygen from the heart and return oxygen-poor blood back to the heart.

2.2 discover 2: take a closer look: respiratory system (4 pts)
1. what is the difference between external and internal respiration?
2. what is the difference between respiration and cellular respiration?

2.2 discover 3: take a closer look: nervous system (6 pts)
1. what are three functions of the nervous system?
2. what type of signals does the nervous system send? what carries these signals?
3. what are the main organs of the nervous system?

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The four levels of organization in an organism are cells which make up tissue,
these tissues (connective tissue, epithelial tissue, muscle tissue and nervous tissue) make up organs that in the end form organ systems. Epithelial tissue protects the body and internal organs. Connective tissue such as bone and cartilage make up the body structure.

The main functions of the cardiovascular system are to transport different things to the body cells such as oxygen and nutrients as well as move waste again from the cells such as carbon dioxide. The main components are the hearth, blood and blood vessels. Each cell in a body needs oxygen in order to function using the process of cellular respiration to get energy from the food that is consumed. The arteries carry blood full of oxygen away from the hearth and the veins return oxygen-poor blood back to the heart.

Looking at the respiratory system we notice there are two types of respiration. External, which is the transfer of gasses between respiratory organs and it takes place before internal respiration. Internal respiration also called tissue respiration or cellular respiration it the metabolic process in which oxygen is released to tissue/cells and carbon dioxide is absorbed by the blood, in other words, it is a chemical process. on the other hand, respiration is the process of intaking outside oxygen and the distribution of it to tissues in the body.

The nervous system is responsible for collecting, transferring and processing information. The nervous system sends electrical signals or nerve impulses through neurons. In this case, the main organs are the brain, nerves and the spinal cord.

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Answer from: Quest

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Module 2 lesson review (50 pts)
directions: after reading the lesson material, answer each qu...

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