Left systemic arch is absent in

Question

Left systemic arch is absent in (A) Reptiles only (B) mammals only (C) birds only (D) both birds and mammals

Tardigrade Admin · Accepted Answer

The systematic arch is involved in the transport of blood to all the body parts except the head. In reptiles and amphibians, both left and right arches are present. Birds have only right arch and mammals have only the left arch.

Q. Left systemic arch is absent in

Reptiles only

mammals only

birds only

both birds and mammals

The systematic arch is involved in the transport of blood to all the body parts except the head. In reptiles and amphibians, both left and right arches are present. Birds have only right arch and mammals have only the left arch.