Organization and Body Systems

Organization and

Body Systems

​Less complex to more complex structures

Organization

Reorder

Reorder the following

• Cells

• Tissue

• Organ

• Organ System

• Organism

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Organization

​Cells are the smallest living functional unit in the body

Organization

Multiple Choice

What is a cell?

• Groups of similar types of cells that work together to carry out a specific task

• Groups of different tissues working together to perform a particular job

• Groups of different organs working together to complete a series of tasks

• The smallest unit of life

​Tissues- are a group of cells that perform a specific function

Organization

Multiple Choice

 Recent studies in bone research indicate that using ultrasound on a broken bone can decrease the healing time by 25%. Which of these are the most basic levels of organization involved when a bone heals? 

• Cells and tissue

• Cells and organ system

• Organ system and organism

• Tissue and organ system

​Organs- a collection of tissues joined in a structural unit to serve a common function

Organization

​Organ System- a group of organs that work together to perform one or more functions

Organization

Multiple Choice

Organs, like the lungs, heart, or skin work together as part of a

• tissue

• cell

• organ system

• organism

• Circulatory / cardiovascular

• Digestive

• Endocrine

• Excretory

• Integumentary

• Lymphatic / immune

​*They all work together to maintain homeostasis*

Body Systems

• ​Muscular

• Nervous

• Reproductive

• Respiratory

• Skeletal

​the state of steady internal, physical, and chemical conditions maintained by living systems

Homeostasis

​are the mechanisms that maintain homeostasis

Feedback loops

Multiple Choice

The diagram demonstrates a feedback process involving antidiuretic hormone (ADH). ADH increases the permeability of parts of the nephrons of the kidney, resulting in less water in the urine.
This feedback loop is likely to be activated when — 

• the body experiences dehydration

• blood glucose levels are stable

• body temperature drops

• the urinary tract is infected

Explanation Slide...

Less water in urine = keeping more water in the body. A good thing when dehydrated. (A type of negative feedback loop, similar to correcting body temperature).

Multiple Choice

The graph models core body temperature during a rapid change in environmental conditions.

Which statement explains the pattern in the graph?

• Body temperature varies in a predictable pattern during the day.

• Body temperature is controlled by an internal feedback mechanism.

• Vasodilation and vasoconstriction are dependent on the time of day.

• Vasodilation and vasoconstriction trigger an immediate increase in body temperature.

• ​Regulation

  • homeostasis

• Nutrient

  • Biomolecules, oxygen, and more

• absorption

  • water and nutrients

• Reproduction

  • gametes and genetic material

• Defense from injury or illness

Properties of Body Systems

The body's command center.

Relays signals to the rest of the body

Nervous System

Respiratory system

• Gas exchange (O₂ and CO₂)

Circulatory system

• Moves Oxygen to other areas of the body

Circulatory and Respiratory

Multiple Choice

Oxygen diffuses from the lung tissue into the red blood cells, then travels to the heart where it is transported to individual cells throughout the entire body for cellular respiration. This is a partnership of what organ systems?

• respiratory and cardiovascular

• respiratory and endocrine

• endocrine and cardiovascular

• respiratory and reproductive

Muscular system

• Movement of skeletal bones

Skeletal system

• Structure and support

Muscular and Skeletal System

Muscular system

• Body Movement

Nervous system

• Controls the Muscular contraction

Muscular and Nervous System

Endocrine

• Hormone regulation

Reproductive

• development of gamete cells

Endocrine and Reproductive System

Endocrine system

• Releases hormones

Reproductive system

• Hormones regulate the creation of gamates

Endocrine and Reproductive System

Integumentary system

• Physical protective barrier

Lymphatic system

• Internal Immune protection

Integumentary and Lymphatic System

Digestive system

• Breakdown and absorption of biomolecules

Excretory system

• waste disposal

Digestive and Excretory System

Polysaccharides start to break down in the mouth using an enzyme salivary amylase

Carbohydrates

Digestion and Biomolecules

.

The Small Intestine absorption

Digestion and Biomolecules

Cell membranes are selectively permeable or semipermeable, which means the membrane controls what enters or leaves a cell.

Digestion and Biomolecules