There are two types of vena cava, one is the superior, the other is the inferior vena cava. Moreover, the vena cava may be any of the large veins that returns the blood pumped throughout the body to the right atrium of the heart.

The Sympathetic ganglion delivers information to the body about stress and impending danger, and are responsible for the familiar fight-or-flight response.

Function of (NERVE FIBER TEASED) General function – gives electrical impulses and responds to various stimuli Nodes of ranvier – propagation of electrical impulse Myelin Sheath – protection of the nerves and making the transmission of signal faster.

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In order to keep moist, toad skin contains glands that secrete a slimy mucous layer to protect the skin from drying out and help draw in oxygen through the skin. In the water, the mucous secretions help frogs retain a healthy balance of salt and water within their internal tissues. In many species, these glands are modified to produce toxins and…[Read more]

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A region of epithelium consisting of columnar or cuboidal cells bearing hairlike appendages (cilia) that are capable of beating rapidly. Ciliated epithelium performs the function of moving particles or fluid over the epithelial surface in such structures as the trachea, bronchial tubes, and nasal cavities. It often occurs in the vicinity of…[Read more]

The spinal cord is the the major column of nerve tissue that is connected to the brain and lies within the vertebral canal and from which the spinal nerves emerge. Thirty-one pairs of spinal nerves originate in the spinal cord: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. The spinal cord and the brain constitute the central…[Read more]

Sweat glands, also known as sudoriferous are small tubular structures of the skin that produce sweat. Sweat glands are a type of exocrine gland, which are glands that produce and secrete substances onto an epithelial surface by way of a duct. There are two main types of sweat glands that differ in their structure, function, secretory product…[Read more]

The luminal cells of the duct contains desmosomes for secretion The secretory cells/coil can be divided into: -a coiled segment -a long and straight segment that extends up to the epidermis -an intraepidermal segment, which joins up with a cork-screw shaped cleft between epithelial cells, opening via a circular aperture Myoepit…[Read more]

In the cerebellum, the gray matter consists of an inner granular layer, Purkinje cell layer, and outer molecular layer.The cerebellum is an integral structure in transmitting sensory signals to the motor portion of the brain. It contributes to motor function by controlling muscle coordination, equilibrium and posture.

This is a Nervous tissue. It is a specialized tissue found in the central nervous system and the peripheral nervous system. It consists of neurons and supporting cells called neuroglia. Its primary function is to receive stimuli and send the impulse to the spinal cord and brain.