5 Skeletal SystemProtects the delicate internal organs and helps keep them properly arranged the bodyBones – hard part of skeleton, made of calcium, phosphorus, and other substancesCartilage – found at the ends of bones, flexable material that lubricates the joints and cushion shocks.
20 Moves blood throughout the body. Circulatory systemMoves blood throughout the body.Blood is made of plasma, red blood cells, white blood cells and platelets.
21 BloodPlasma – 90% waterGlucose, vitamins, minerals, and amino acids (proteins)Red blood cells - contain hemoglobin and are made in the bone marrowWhite blood cells – help fight off diseasePlatelets – essential for blood to clot
22 Circulatory system parts Heart – pump that sends blood throughout the systemArteries – vessels that carry blood from the heartCapillaries – small branches from the arteries that carry blood to the cellsVeins – carry blood back to the heart
25 Respiratory system moves gases to and from the circulatory system.
26 Respiratory system cont. Internal respiration – exchange of gases between the cells and the blood within the bodyExternal respiration – exchanges of gases in the lungs between the blood and the atmosphere
27 Respiratory system cont. Nostrils – openings near mouth through which gases enter and leave the bodyPharynx – connects the nose area with the mouth areaLarynx – often called a voice boxTrachea – wind pipe – connects pharynx with lungsLungs – gas is exchanged between atmosphere and blood
28 Breathing Inspiration – Process of taking air into the lungs Expiration – Process of moving air out of lungs
30 Rids the body of wastes from cell activity Skin Kidneys Ureter Bladder Excretory systemRids the body of wastes from cell activitySkinKidneysUreterBladderUrethra
31 Excretory system Skin - Rids the body of waste through perspiration Kidneys – Filter the blood for wastes from cells and excess water and mineralsUreter – Tube that connects the kidney to the bladderBladder – stores the urine made by the kidneysUrethra – tube that carries urine out of the body
32 Chicken urinary tract No bladder 2 kidneys with ureters to carry the urinary waste to the cloaca.The uric acid is discharged into the cloaca and excreted with the feces.The white pasty material in chicken droppings is considered to be urinary system excretion.
34 Digestive SystemsProcess of breaking down food into molecules that the body can absorb2 types – Ruminant and Non- Ruminant
35 Ruminant Animals Cattle, sheep, and goats Chew their cud Cud - a portion of foodthat returns from aruminant's stomach inthe mouth to be chewedfor the second time
36 Non – ruminant AnimalsHorses, hogs, and chickensDo not chew cud
37 Digestive Systems Mouth – Food enters the body by ingestion Esophagus – connects mouth to stomachFood and water moves by swallowingStomach – one compartment in non-ruminants and 4 compartments in ruminantsSmall Intestine – absorbs nutrients and water
38 Digestive systemsLarge Intestine – absorbs water and makes waste more solidAnus – opening in the body through which the large intestine expels solid waste
39 RuminantsRumen – first and largest compartment – stores a large amount of feedAids the to help bring feed back to mouth for rechewingReticulum – stores food and sorts out foreign materialsHelps prevent hardware diseaseContains bacteria to help break down feed
40 RuminANTS Omasum – has strong alls that help break food apart Abomasum – like a non ruminant stomachContains gastric juices that mix with feed and further break it down.
45 Chicken Digestions Beak – food swallowed with out chewing Salvia contains a starch reducing enzyme that begins to break down food.The oesophagus is a flexible tube that food passes down into the crop.
46 Chicken DigestionCrop – a pouch at the base of the neck that stores food.The esophagus continues past the crop to the proventriculus.In the proventriculus the food is mixed with acids and more digestive enzymes.
47 Chicken DigestionGizzard – strong muscular tube that has grit to help it grind the food down.Then the food moves into the small intestine.Here enzymes from the pancreas break down the protein.Also, bile from the liver breaks down the fat.Caeca – a pair of tubes that allow fermentation of the undigested food.
48 Caeca – a pair of tubes that allow fermentation of the undigested food. The Large Intestine absorbs water and the last remaining nutrients.Cloaca or vent is where feces, urine and eggs pass.