Animal Tissue and Anatomy

Henle's loop is located after PCT.

Renal pyramids are cone-shaped kidney tissues.

Renal columns are bands of granular tissue separating adjacent renal pyramids. The renal columns contain vessels and urinary tubes that run to the cortex.  They are supposed to be the extension of cortex into medulla.

Tuberculosis is a bacterial infection that primarily attacks the lungs but can spread to other parts of the body.

The heart is not a part of lymphatic system. It belongs to the circulatory system. It is located in the center of the chest.

Glottis of frog leads to laryngotracheal chamber. It is ventral to oesophagus and is surrounded by lateral laryngeal cartilages.

Vocal cords are present in larynx. It helps in sound production.

The liver is the heaviest internal organ in the human body, typically weighing about 1.5 kg in an average adult. The brain, heart, and kidneys are lighter.

Meninges are the three layers of protective membranes (dura mater, arachnoid mater, and pia mater) that cover the brain and spinal cord.

The liver produces and excretes bile (a yellowish liquid) required for emulsifying fats and help the absorption of vitamin K from the diet. Some of the bile drains directly into the duodenum, and some is stored in the gallbladder.

The common hepatic duct joins the cystic duct coming from the gallbladder to form the common bile duct. The duct is usually 6–8 cm length and 6mm in diameter in adults.The hepatic duct is part of the biliary tract that transports secretions from the liver into the intestines. It carries more volume in people who have had their gallbladder removed.

The two labia minora meet at the clitoris, a small, sensitive protrusion that is comparable to the penis in males. The clitoris is covered by a fold of skin, called the prepuce, which is similar to the foreskin at the end of the penis. It is an external structure of the female reproductive system.

The prostate is a walnut-shaped gland that surrounds the urethra. Along with the seminal vesicles it produces the fluid secretions that support and nourish the sperm. Without this fluid to dilute them, the sperm cannot move easily. After the age of 40 years,  the prostate enlarges and can press on the urethra. An enlarged prostate is often the cause of urinary problems in older men.

Vagina is a canal that joins the cervix (the lower part of uterus) to the outside of the body. It  is also known as the birth canal. It is an internal reproductive organ in the female .

Gall bladder is a pouch-shaped organ which lies near the liver. It accepts bile from the liver, and stores it. When food is digested, the gall bladder releases bile into the small intestine where it is able to help dissolve fats. It is not an accessory organ of the alimentary canal .