How are the organs of higher animals held together?
How are the organs of higher animals held together?
Higher animals are composed of trillions of differentiated cells, and thus need some way to maintain their structural integrity. Many invertebrate animals (such as insects and crustaceans) have external body coverings composed of chitin and other tough proteins, called exoskeletons. Sharks and rays are held together by cartilage.
What makes up the filter in the kidneys?
Millions of small filters, or units called nephrons, each filled with a small amount of blood make up your kidneys. Healthy kidneys will filter out urine, wastes, and other harmful toxins through these units while at the same time, the units will retain healthy blood cells, vitamins, minerals, and other important proteins.
What kind of organs do all vertebrate animals have?
All vertebrate animals—from fish to reptiles to human beings—possess gonads, paired organs that create sperm (in males) and eggs (in females). The males of most higher vertebrates are equipped with penises, and the females with vaginas, milk-secreting nipples, and wombs in which fetuses gestate. 07. of 12.
How does the circulatory system in vertebrate animals work?
Vertebrate animals supply oxygen to their cells via their circulatory systems, which are networks of arteries, veins, and capillaries that carry oxygen-containing blood cells to every cell in their bodies. (The circulatory systems of invertebrate animals are much more primitive; essentially,…
Higher animals are composed of trillions of differentiated cells, and thus need some way to maintain their structural integrity. Many invertebrate animals (such as insects and crustaceans) have external body coverings composed of chitin and other tough proteins, called exoskeletons. Sharks and rays are held together by cartilage.
Vertebrate animals supply oxygen to their cells via their circulatory systems, which are networks of arteries, veins, and capillaries that carry oxygen-containing blood cells to every cell in their bodies. (The circulatory systems of invertebrate animals are much more primitive; essentially,…
Which is the space between the rib cage and the lungs?
Thoracic cavity – The space in which the rib cage, heart, and lungs are found in vertebrates. Trachea – The tube that carries air between the larynx and the lungs. 1. In which organ in the abdominal cavity is bile stored?
What kind of organs are in the chest?
Organs. The chest is the area of origin for many of the body’s systems as it houses organs such as the heart, esophagus, trachea, lungs, and thoracic diaphragm. The circulatory system does most of its work inside the chest.
Where is the thorax located in an animal?
Thorax, the part of an animal’s body between its head and its midsection. In vertebrates (fishes, amphibians, reptiles, birds, and mammals), the thorax is the chest, with the chest being that part of the body between the neck and the abdomen. The vertebrate thorax contains the chief organs of
Where are the lungs located in the animal body?
Respiration (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 out of the lungs.
What makes the lungs separate from the abdomen?
The diaphragm is a sheath of muscle that separates the organs of the chest and abdomen. When you take a breath, you’re flexing the diaphragm and a number of smaller muscles in your chest. This inflates the lungs, creating a partial vacuum, drawing air into your nose and mouth and into your lungs.
Where does air move in and out of the animal body?
As the animal breathes, air moves in and out of the lungs. Inside the lungs oxygen needed by the body passes into the blood in the walls of the lungs and water and carbon dioxide pass out of the blood into the air which is then breathed out. The main organs are the two kidneys, which lie against the backbone, and the bladder.