life sci chap 11 + 12
Which of the following correctly explains what a heart attack is?
Arteries that supply the heart with oxygen become blocked
Select the correct sequence for the pathway of blood through the heart. (7)
Body → Right atrium → Right ventricle → Lungs → Left atrium → Left ventricle → Body
Which are the smallest, thinnest blood vessels where O2 and CO2 exchange occurs in the body are:
Capillaries
Which of the following is an organ system?
Circulatory system
Digestion can be both _____ and ______, and it occurs both in the ______ and in the _______
Digestion can be both mechanical and chemical, and it occurs both in the mouth and in the stomach
The only way to get adequate calcium in adulthood is to eat/drink dairy products. (T/F)
False
What is the role of the epithelium?
Helps protect the body from the external environment
Where are the villi located?
In the small intestine
What are the four stages of food processing, ordered from beginning to end?
Ingestion, digestion, absorption, elimination
What is the role of the epiglottis?
It prevents food from entering the trachae during swallowing
Which organ is responsible for the production of bile?
Liver
What is the correct hierarchy of organization, from biggest to smallest, in your body? (5)
Organism, organ system, organ, tissue, cell
The respiratory system exchanges which gases?
Oxygen is inhaled, while carbon dioxide is exhaled
What moves the food from your mouth to your stomach when you swallow?
Peristaltic muscle contractions
________ refers to the function of a body part, while ________ refers to the structure of a body part.
Physiology; anatomy
Which of the following describe the integumentary system? (3)
Skin, nails, hair
The site of actual air exchange within the lungs is:
The alveoli
What happens during diastole?
The heart muscles relax, allowing blood to flow the chambers of the heart
The alimentary canal is ________.
The series of digestive organs
Veins carry ________.
They only carry blood back to the heart
What is the role of the villi?
To absorb small nutrient molecules from the digestive tract
What is the primary function of the sinoatrial node?
To initiate the contraction of the heart
The purpose of bile is:
To separate fats into smaller droplets
What is the difference between vitamins and minerals?
Vitamins are organic nutrients, while minerals are inorganic nutrients
The main role of the large intestine is to ________.
absorb water
Connective tissue is the most variable of the tissue types. What are examples of these? (3)
blood, fat, bone
An essential nutrient is specifically a nutrient that your body ________.
cannot make by itself
What are the 6 essential nutrients?
carbohydrates, fats, proteins, vitamins, minerals, water
Why do people need to eat?
food provides ATP, essential nutrients/ building materials
The systemic circuit specifically circulates blood ________.
from the heart to the rest of the body
The cardiovascular system consists of ________. (3)
heart, blood vessels, blood
Maintaining a steady-state internal environment, despite a changing external environment, is called ________.
homeostasis
Response to a stimulus, such that the effect of the stimulus is counteracted, is called a ________ feedback.
negative
_____ make up the nervous tissue
neurons
Tissues are made up of ________ that work together to perform a function.
similar cells
Most of the absorption of nutrients (besides water) takes place in the ________.
small intestine
