Respiratory System

A hippopotamus respirartory system has a spongy texture and are honeycombed with a type of animal tissue called epithelium having a much larger surface area in total than the outer surface area of the lung itself. This makes there lungs like human lungs. Breathing is driven by the muscular diaphragm. The air enters the oral or nassal cavities then it flows through the larynx, trachea and bronchi and expands the alveoli.

Nervous System

A hippopotamus has a brain and a spinal like many mammals. In many mammals like the hippopotamus the brain possess a neocortex. This is a region in the brain that is unique to mammals. They also have a corpus callosum, which placanta mammals have unlike monotremes and marsupials.

Baby Hippopotamus

Skeletal/Muscular System

A hippopatumus has seven cervical vertebrae. A cervical vertebrae is a bone that is in the neck. They also have a muscular lip that is about a half meter wide to help them when the feed.

Integumentary System

The integumentart system of a hippopotamus has three layers and they are the epidermis which is the outermost, then the dermis, and then the hypodermis. The skin is what protects the body from damage. The integumentary system helps waterproof, cushion, and protects the deeper tissue, excrete wastes, and regulate temperature. It is also the attachment site for sensory receptors to detect pain, sensation, pressure, adn temperature.

External Picture

Classification

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Hippopotamidae
Genus: Hippopotamus
Species: H. amphibius