chatgpt
Q.14: B. Secretin
Q.15: C. Epinephrine
Q.16: A. Dendrite
Q.17: B. Associative
Q.18: B. Non-myelinated nerve fibers
bard AI
Sure, I can help you with that. Here are the answers to your questions:
14. **B. Secretin**
Secretin is a hormone that is released by the duodenum in response to the presence of acid in the small intestine. It stimulates the release of pancreatic enzymes and bicarbonate ions, which help to neutralize the acid and digest food.
15. **C. Epinephrine**
Epinephrine is a hormone that is released by the adrenal glands in response to stress or exercise. It causes a number of physiological changes, including increased heart rate, blood pressure, and blood sugar levels. Epinephrine also causes vasodilation in muscles, which helps to increase blood flow to the muscles.
16. **A. Dendrite**
Dendrites are the branched projections of a neuron that receive signals from other neurons. They can also act as receptors, in that they can bind to neurotransmitters released by other neurons.
17. **B. Associative**
Associative neurons are relay neurons that connect sensory neurons to motor neurons. They are responsible for integrating information from multiple sensory neurons and sending signals to the appropriate motor neurons.
18. **B. Non-myelinated nerve fibers**
White matter in the central nervous system is composed of bundles of non-myelinated nerve fibers. Myelin is a fatty sheath that surrounds nerve fibers and helps to insulate them. Non-myelinated nerve fibers are faster than unmyelinated nerve fibers, but they are not as fast as myelinated nerve fibers.
Sure, here are the questions and answers in a simpler format:
**Questions**
1. Which one makes the pancreas release juices?
2. What makes muscles get bigger?
3. Which part of a brain cell can also be a door?
4. Which brain cell takes messages to muscles?
5. What is white matter made of?
**Answers**
1. Secretin makes the pancreas release juices.
2. Epinephrine makes muscles get bigger.
3. Dendrite can also be a door.
4. Associative neuron takes messages to muscles.
5. White matter is made of bundles of non-myelinated nerve fibers.
**Explanations**
* Secretin is a hormone that makes the pancreas release juices. It helps to digest food.
* Epinephrine is a hormone that makes muscles get bigger. It also helps us to fight or flee when we are in danger.
* Dendrite is a part of a brain cell that receives signals from other brain cells. It can also act as a door, in that it can open and close to let in or keep out signals.
* Associative neuron is a brain cell that takes messages from sensory neurons to motor neurons. It helps us to integrate information from our senses and to make decisions about how to move our bodies.
* White matter is the part of the brain that is made up of bundles of nerve fibers. It helps to transmit signals between different parts of the brain.
**Analogies**
* Secretin is like a key that unlocks the door to the pancreas.
* Epinephrine is like a fire alarm that makes our muscles get bigger.
* Dendrite is like a mailbox that receives letters from other brain cells.
* Associative neuron is like a postal worker that delivers letters from sensory neurons to motor neurons.
* White matter is like a highway that helps to transmit signals between different parts of the brain.
**Examples**
* Secretin is released when we eat food. It tells the pancreas to release juices that help to digest the food.
* Epinephrine is released when we are in danger. It makes our muscles get bigger and our heart rate go up. This helps us to fight or flee from the danger.
* Dendrite is the part of a brain cell that receives signals from other brain cells. For example, when we see something, the light from the object hits our eyes and sends signals to the dendrites of our brain cells.
* Associative neuron is a brain cell that takes messages from sensory neurons to motor neurons. For example, when we see a ball, the light from the ball hits our eyes and sends signals to the dendrites of our brain cells. These signals are then sent to an associative neuron, which takes the message to a motor neuron that tells our arm to reach out and grab the ball.
* White matter is the part of the brain that is made up of bundles of nerve fibers. These nerve fibers help to transmit signals between different parts of the brain. For example, when we see something, the signals from our eyes travel through white matter to the part of the brain that processes vision.
I hope this is helpful! Let me know if you have any other questions.