Arterial System of Frog
Vessels carrying blood away from heart are called arteries. Arteries join to form arterial system. It has following main branches. Each main branch further divides into three branches.
Carotid Arch:
It supplies blood lower jaw, tongue, eye and brain etc.
Pulmocutaneous Arch:
It carries blood to lungs and skin.
Systemic Arch:
It has two parts. Right & Left systemic arch. Both these arches join to form dorsal aorta. Each systemic arch divides into arteries and supplies blood to vertebral column, oesophagus and fore limbs.
Dorsal Aorta:
It runs along the vertebral column towards the hind limbs. It further divides into following arteries:
- i) Coeliacomesenteric artery:
It supplies blood to digestive system.
- ii) Renal Arteries:
It supplies blood to kidney and genetal organs.
iii) Posterior mesenteric artery:
It supplies blood to rectum.
- iv) Iliac Arteries:
It supplies blood too hind limbs.
Difficult behavior and imbalance are characteristic of adolescence. They are associated with the physiological characteristics of the development of the body. At this stage, it can be very difficult to find a common language with students. Teenagers at this age strive for isolation, adulthood. They themselves begin to create a circle of interests that no longer depends on parents and school teachers. Children of high school age are already choosing authorities on their own. It also strengthens friendships with peers.