Homework Chapter 32

Homework Chapter 32

The Integumentary, Skeletal and Muscle Systems

Standards: Students know the functions of body systems in maintaining homeostasis:

a. Students know the functions of the nervous system and the role of neurons in transmitting electrochemical impulses,

b. Students know how the nervous system mediates communication between different parts of the body and the body’s interactions with the environment.

c. Students know the cellular and molecular basis of muscle contraction, including the roles of actin, myosin, Ca+2 , and ATP

Section 1: The Integumentary System

1. Carefully Draw AND Label a cross-section of skin (p 936) Label : epidermis, dermis,

subcutaneous layer, fatty tissue, hair follicle, muscle, sebaceous gland, artery, vein, capillary, nerve, sensory receptor, and free nerve ending,

2. In what layer of skin would one find fat? In what layer of skin would one find nerves and

blood vessels? In what layer of skin would one find keratin?

Integumentary System Functions Damage 3. Create a chart like this then complete it. 4. How can the integumentary system help a human survive? In other words, how does it help maintain homeostasis?

Section 2: The Skeletal System

1. Carefully Draw AND Label the bone cross section on p. 942. Label: cartilage, spongy bone, conpact bone, marrow cavity, periosteum, and blood vessel. Joint Type 2. What are the two types of skeletons? Examples 3. Create and complete a chart like this:

4. What is the function of the skeletal system? In other words, how does it help maintain homeostasis?

Section 3: The Muscular System

1. Carefully Draw AND Label the three types of muscle. Label each type, and label striations and nucleii.

2. Carefully Draw AND Label the three sarcomeres on p 949 show relaxed, contracting and fully contracted conditions. Label sarcomeres, myosin filaments, actin filaments, and z lines

3. What are the steps of the sliding filament theory? Follow these with the information on how to return he muscle to resting position located on p 950 in paragraph about rigor mortis. Be sure to include the original stimulus for the muscle contraction.

4. What is the difference between fast twitch and slow twitch muscles?

Chapter 33 Homework : Nervous System

Standards: Students know the role body systems have in maintaining homeostasis in a constantly

changing environment.

a. Students know the functions of the nervous system and the role of neurons in transmitting electrochemical impulses: b. Students know the roles of sensory neurons, interneurons, and motor neurons in sensation, thought, and response

Section 1: Structure of the Nervous System 1.

Draw and Label a neuron. Label the nucleus, axon, dendrite, cell body, and axon endings. 2. What is another name for a nerve impulse? 3. What is a threshold? 4. What is a myelin sheath? What is a node? 5. What is the synapse? 6. What is a neurotransmitter?

Section 2: Organization of the Nervous System

1. What are the two parts of the Central Nervous System? 2. What is the function of the somatic nervous system? 3. What is the function of the autonomic nervous system?

4. How does the relationship between the sympathetic and the sympathetic nervous systems relate to the main idea that body systems have a role in maintaining homeostasis?

Section 3: The Senses

1. Copy and complete this chart: Specific Location Sense of 'receptors' SIGHT SMELL TOUCH HEARING TASTE How these 'receptors' help the body maintain homeostasis

Chapter 34: Circulatory, Respiratory and Excretory Systems

Standards: Students know the body systems maintain homeostasis in changing conditions: a. Students know how the complementary activity of major body systems provides cells with oxygen and nutrients and removes toxic waste products such as carbon dioxide. b. Students know how the nervous system mediates communication between different parts of the body and the body’s interactions with the environment.

Section 1: The Circulatory System aka The Cardiovascular System

1. Copy and label Figure 34.6 on page 996 Notice what type of vessel takes oxygen-rich blood from the heart to every place in the body EXCEPT the lungs, what type of vessel carries oxygen-poor blood to the heart, what type of vessel takes oxygen-poor blood to the lungs and what type of vessel carries oxygen-rich blood to the heart. 2. What are the components of blood?

3. What are the roles of each blood component in helping the body maintain homeostasis? 4. How does the nervous system control the circulatory system? (hint: pacemaker)

Section 2: The Respiratory System

1. What is the difference between external and internal respiration? 2. What is the major muscle that controls breathing?

3. Why is it said that the workhorse of the respiratory system is the alveoli? Explain what happens in the alveoli.

4. What is the nervous system monitoring that would cause breathing rate to increase? 5. How does the respiratory system help a body maintain homeostasis?

Section 3: The Excretory System

1. What are the 3 functions of the excretory system?

2. What are the 3 components of the excretory system, and what does each excrete? 3. What is the source of the excreted materials?

4. What percentage of the total body's oxygen is used in the kidney's operation? 5. Complete the questions in the Data Analysis Lab 34.1 on p. 1007

6. How do the organs of the excretory system help the body maintain homeostasis?

Chapter 35: Digestive and Endocrine Systems

Standards: In maintaining homeostasis within the body…

a. Students know how feedback loops in the nervous and endocrine systems regulate onditions

in the body.

b. Students know how hormones (including digestive, reproductive, osmoregulatory) provide

internal feedback mechanisms for homeostasis at the cellular level and in whole organisms. c. Students know the individual functions and sites of secretion of digestive enzymes (amylases,

proteases, nucleases, lipases), stomach acid, and bile salts.

d. Students know how hormones (including digestive, reproductive, osmoregulatory)

provide internal feedback mechanisms for homeostasis at the cellular level and in whole organisms

Section 1 : The Digestive System

1. Beginning with the mouth, draw and label the human digestive system. 2. What is the difference between mechanical and chemical digestion? 3. What is peristalsis?

4. Copy and complete the chart: organ secretion(s) function Time food stays in structure mouth stomach liver pancreas gall bladder small intestine large intestine 5. What are the digestive system's job in maintaining body homeostasis.

Section 2: Nutrition

1. Copy and complete the chart. Macromolecule caloriesMonomer Food Source How Helps Body Maintain /gram Homeostasis Carbohydrate Protein Fat 2. Other than the macromolecules in the chart above, what other nutrients does the body need to maintain homeostasis?

Section 3: The Endocrine System

1. Copy and complete the chart

Endocrine Location Hormone Type of Function of Gland Released Hormone Hormone

2. How does the endocrine system work in tandem with the nervous system to maintain homeostasis?

3. What is 'negative feedback'? How does it function in homeostasis?

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