Tissues and No Issues
4 Types of Tissues in Humans
Connective, nerve, muscle and epithelial
Where does most nutrient absorption happen?
Small intestine, duodenum
What is the role of the nose in breathing?
Trap particles and dust + make the air warmer/moister as it enters the lungs
What is the function of red blood cells?
To carry oxygen from the lungs to the rest of the body
Which system is responsible for breaking down food into nutrients the body can use?
Digestive
Name 1 Tissue that the stomach is made of!
Either of connective (to bind the small intestine and esophagus), muscle (to digest and churn food) and nerve tissues (to tell us when we’re hungry)
Where does chemical digestion begin?
Mouth, salivary amylase
What is the main function of the respiratory system?
To bring oxygen into the body and remove carbon dioxide
What is the role of platelets?
They help to clot blood to help stop a bleed; they congregate together.
Which system is responsible for sending signals to control body functions?
Nervous system
Explain the role of nerve tissue in the body.
Brain, spinal cord and nerves- responsible for coordinating and controlling many of the body’s activities!
What is peristalsis?
Rhythmic contractions of the esophagus and stomach that help bring the food down the gastrointestinal tract.
What is the role of the diaphragm during inhalation?
It contracts and moves downward, increasing chest cavity space so air can enter
Difference between arteries and veins?
Arteries carry blood away from the heart, veins carry blood towards the heart.
How do the respiratory and circulatory systems work together?
The respiratory system brings oxygen into the lungs, and the circulatory system transports it in the blood to the rest of the body
What is the difference between pluripotent and totipotent stem cells?
Totipotent: can become any kind of cell in the body, Pluripotent: can become many cells types but not all
What is the pyloric sphincter?
A sphincter between the stomach and small intestine.
Where does cellular respiration occur?
Mitochondira of cells
Which side of the heart does oxygenated blood flow through?
Left
How do the muscular and skeletal systems work together to allow movement?
Muscles contract and pull on bones, and the skeletal system provides structure and acts as a lever system for movement
What are two factors that influence the process of cell differentiation?
Any of environment, cytoplasm contents or cells nearby
Explain the role of the liver and gallbladder.
The liver produces bile which helps to digest fats. Gallbladder stores bile.
How do oxygen and carbon dioxide move between the alveoli and blood?
By diffusion, oxygen moves into the capillaries and carbon dioxide moves out.
What is the AORTA?
Explain how all five systems (digestive, respiratory, circulatory, nervous, muscular/skeletal) work together during physical activity.
The digestive system provides nutrients, the respiratory system brings in oxygen, the circulatory system delivers oxygen and nutrients to cells, the muscular and skeletal systems allow movement, and the nervous system coordinates all actions to keep the body working properly