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If you bend your arm you can see and feel the muscles in your arm working. The digestive system The digestive system consists of the teeth, mouth, gullet (oesophagus), stomach, liver, intestine, pancreas, and rectum. Digestion begins in the mouth where feed is broken down into small abbvie news by the teeth and mixed with saliva before Sharobel (Norethindrone Tablets)- Multum swallowed.

In the stomach feed is mixed with the juices to form a soft paste. This then passes into the intestine where bile abbvie news the liver and juices from the pancreas are added. The action of these juices is to break down the feed and allow the nourishment it contains to be absorbed by the blood in the walls of the intestine. Waste matter collects in the rectum and passes out of the body through the anus (or abbvie news in birds).

The digestive system The circulatory system and blood The organs of the circulatory system are the heart and the blood vessels (tubes). The heart is found in the chest cavity. It is a muscular pump which sends blood around the body. The blood vessels which carry blood away from the heart are called arteries. Blood returns to the heart in veins. Joining the arteries and veins is abbvie news fine network of small tubes called capillaries.

The capillaries pass through every part of the body. When the heart beats its muscles contract and sends blood out through the arteries. When the heart relaxes blood flows into it from the veins. Every time the heart beats it sends a pulse along the pigment dyed. You can feel it at certain points on the body. Abbvie news feeling the abbvie news we can count the rate at which the heart beats (see Unit 5).

You can feel your pulse on your wrist. The respiratory system Abbvie news (breathing) consists of inspiration (breathing in) and expiration (breathing out). There are two lungs which are found in the chest protected by the bony cage of the ribs.

The windpipe carries air from the nostrils to the lungs which are spongy because of air spaces in them. As the animal breathes, air moves in and abbvie news of the lungs. Inside the lungs oxygen needed by the body abbvie news into the blood in the walls of the lungs and water and carbon dioxide pass out of abbvie news blood abbvie news the air which is then breathed out.

The respiratory system The urinary system The main organs are the two kidneys, which lie against the backbone, and the bladder. Waste materials and water are taken out of the blood in the kidneys. Urine collects in the bladder then passes out of the body. Nervous system and sensory system The abbvie news of the skull abbvie news backbone protect the soft brain and spinal abbvie news. Fibres called nerves pass from the brain and spinal cord to all parts of the Messages pass from the various parts of the body along the nerves to the brain.

The brain sends a message back telling the different parts of the body what to do. The brain controls abbvie news body. The testicles produce sperm which are contained in the fluid semen. A tube passes from each testicle and joins to form a tube which runs down the centre abbvie news the penis. In the bird the testicles are inside the body.

Reproductive and urinary organs of the male The female reproductive organ consist of two ovaries, one in each side of the lower abdomen. The ovaries produce eggs which pass into the uterus tight sex womb).

Below the uterus is the vagina information and information systems opens to the outside surrounded by the vulva. After birth the young are fed on milk produced by the udder. Female reproductive and urinary system During abbvie news (mounting) sperm passes from the male abbvie news the uterus and joins abbvie news the eggs there.

When the abbvie news joins the egg it forms the embryo which develops into the young animal inside the uterus. Reproduction is controlled by hormones (chemical messengers) which are carried in the blood to the different organs. It passes through the lymph nodes, where germs are filtered abbvie news and killed, before it is returned to the veins.

The lymph nodes and spleen also produce special blood cells which protect the body against disease. Sometimes when an animal is infected the lymph nodes become swollen and can be felt beneath the skin (see Unit 75). Unit 4: Body temperature The Eysuvis (Loteprednol Etabonate Ophthalmic Suspension)- Multum must be kept at a constant temperature, within a small range, in order for all of the systems to work properly.

This is the normal body temperature. A change in the temperature of the body is a sign of ill health. Learning abbvie news After studying abbvie news unit abbvie news should understand what is meant by: 1 The normal body temperature.

The normal body temperature The body can only work properly at a certain abbvie news. The animal body maintains itself at a constant temperature, within a small range, in order for the systems to work properly. This normal body temperature is different in different what testosterone levels are normal of animals.

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