excretory system and homeostasis

Endocrine/Excretory/urinary system and homeostasis

Welcome to the lesson!

These are the glands that are part of the endocrine system

Multiple Choice

What is the main function of the endocrine system?

• It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.

• It creates electrical messages that are sent around the body to maintain homeostasis.

• It maintains the correct level of oxygen in the body to maintain homeostasis.

• It releases waste from the body to maintain homeostasis.

Multiple Choice

Endocrine glands secrete _

• Hormones

• Neurotransmitters

• A wide range of chemical substances

Multiple Choice

Homeostasis

• allows for a wildly fluctuating internal environment

• is impossible in vertebrates

• is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

• is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

This is the control centre of the endocrine system

Multiple Choice

What is the endocrine system?

• A system of vessels that circulates blood around the body.

• A group of bones and tissue that provides support and structure for the body.

• A group of glands that work together with the nervous system to coordinate all body functions

• A group of organs that is responsible for eliminating wastes.

Multiple Choice

What hormone is responsible for the "fight or flight" response?

• Testosterone

• Cortisol

• Adrenaline

• Parathyroid Hormone

This explains the different hormones that are secreted by the differnet glands and their functions

The controller is the brain, the variable could be anything e.g. blood glucose levels, the sensor is in the blood vessels, the effector is the pancreas which releases the hormone insulin to lower blood glucose levels.

Multiple Choice

Muscles and glands are also called as ....... because they give respond after the stimuli are processed

• receptor

• sensor

• effector

• sensory

Multiple Choice

The pancreas produces _____ when your blood sugar level is high.

• Thyroxin

• Melatonin

• Glucagon

• Insulin

Multiple Choice

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases the hormone insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. What is this process called?

• Positive Feedback Response

• Negative Feedback Loop

Multiple Choice

Which system sends electrical messages that helps control the body's responses to internal and external changes?

• nervous
• endocrine
• reproductive
• integumentary

Multiple Choice

Maintaining body temperature is an example of a:

• negative feedback loop
• positive feedback loop

Multiple Choice

The term for maintaining internal temperature is:

• Thermoregulation

• Thermometer

• Homeothermal

• Homeostasis

The pituitary gland secretes ADH (Anti-diuretic hormone) this reduces the amount of water released from the nephron in the kidney.

Multiple Choice

Anti-diuretic hormone (ADH) is released by which gland of the endocrine system

• Thyroid

• Pituitary

• Ovaries

• Adrenal

This image shows the excretory system

Multiple Select

Which of the following are part of the excretory system?

• Kidney

• Ureter

• Bladder

• urethra

Excretory products are waste products from the filtration of our blood through the kidneys.

The medulla is where the filtration of blood takes place in the nephrons

Like all organs and systems, there is always a good blood supply, arteries taking the oxygenated blood in and veins taking the blood back to the heart. The blood vessels in the kidneys are very tiny arterioles, venules and capillaries.

The 3 stages of urine production are filtration of the blood, reabsorption of any fluid if needed, and secretion of excess fluid (too much fluid)

Multiple Choice

The main function of the urinary system is to:

• Get rid of waste and extra fluid

• Keep waste in the body

• Get rid of nutrients

• Make you poo

Multiple Choice

What is normally found in urine?

• red blood cells

• bacteria

• proteins

• urea

Multiple Choice

The three stages of urine production are _______, ______________, and ___________.

• filtration, reabsorption, and secretion

• filtration, urine secretion, and leukocytosis

• reabsorption, discretion, and secretion

Multiple Choice

Maintaining internal stable conditions is the definition of...

• Hypertonic

• Hypotonic

• Homeostasis

• Heterotroph

Multiple Choice

Thermoregulation means?

• Maintain temperature

• Maintain water levels

• Maintain heart rate

• Maintain breathing

Multiple Choice

Osmoregulation means....

• maintain water levels

• maintain temperature

• maintain heart rate

• maintain breathing