EN Options STAAR Packet Make-up Check

WARM UP Mon. (5/8)/Tues. (5/9) An informational pamphlet in a health clinic describes an interaction between body systems. Which statement identifies the body systems that are directly involved in the interaction described and explains how they accomplish the interaction? A. The nervous system produces hormones that stimulate the ovum, and the circulatory system moves the ovum into the uterine tube. B. The circulatory system supplies the uterine wall with oxygenated blood, and the immune system prevents damage to the ovum. C. The reproductive system produces the ovum, and the muscular system causes the migration of the ovum by peristaltic contractions D. The excretory system expels the ovum from the ovary, and the nervous system causes the contractions of the smooth tissues of the uterine wall. Answer: C

Objectives Introduce 3 Body Systems: Skeletal Integumentary Muscular Universe Within Questions (Long jumper) Muscle Fatigue Lab

Integumentary, Skeletal and Muscular Systems Pg. 1-2 ORHS BIOLOGY 2016

The Integumentary System Structures: Skin, hair nails and some glands (oil and sweat) Function: Serves as a protective barrier against infection and injury and UV light, regulate body temperature, removes waste products from the body.

SKIN Skin is made up of three layers Epidermis –outer layer, forms keratin, contains melanin Dermis – middle layer, contains: blood vessels, nerve endings, glands, sensory receptors, hair folicles. Hypodermis- inner layer, contains fatty tissue

THE MUSCULAR SYSTEM

STRUCTURE AND FUNCTION OF THE MUSCULAR SYSTEM Structures: Skeletal muscle, smooth muscle, cardiac muscle Function: Works with skeletal system to produce voluntary movement; helps circulate blood and move food through the digestive system

SMOOTH MUSCLES Involuntary control- you can not control its movement One nucleus, not striated (lines) Located in stomach, blood vessels, intestines

CARDIAC MUSCLE Found only in the heart Is striated (lines) like skeletal muscle, but cells are smaller Usually has one nucleus, can have two Is under involuntary control

SKELETAL MUSCLE Skeletal muscles are under voluntary control and produce movement by pulling on body parts Each muscle can only pull in one direction Muscles connect to bones by tendons Tendons pull on the bones, working the bone like a lever Muscles work in opposing pairs – when one contracts the other is relaxed http://www.youtube.com/watch?v=1SGM06DiXLc

Opposing Muscle Pairs

THE SKELETAL SYSTEM Structures: Bones, cartilage, ligaments, and tendons Function: Supports the body; protects internal organs; allows movement; stores mineral reserves; provides a site for blood cell formation

The Structure of BONE How bones grow video Spongy bone Compact bone Periosteum Bone marrow Haversian canal Osteocyte Artery Vein

Bone Marrow In the middle – soft bone marrow Yellow marrow – made of fat cells Red marrow – produces new blood cells, some white cells, and platelets

TYPES OF JOINTS Joints are where one bone attaches to another bone. Joints can be: Immoveable (Fixed), Slightly moveable, Freely moveable Ligaments are made of tough connective tissue and connect bone to bone

FIXED JOINT Immoveable Skull

Freely Movable Joints

Types of Freely Moveable Joints Ball and Socket widest range of motion – shoulder Hinge joints back and forth motion - knee Pivot joints rotate - elbow Saddle joints slide - foot

Ball and Socket Joint

Hinge Joint

Pivot Joint

Saddle Joint

Universe Within Video (Pg. 22-23)

Muscle Fatigue Lab Pg. 12-13