The cerebrum is part of the brain, and so is part of the nervous system.
nervous system
The integumentary system includes the epidermis. The epidermis is part of the organ called the skin.
The digestive system includes the esophagus.
The digestive system.
An organ sytem includes tissues.
The integumentary system (which also includes hair and nails).Integumentary System
An organ sytem includes tissues.
The respiratory system.
Skeletal System
The integumentary system includes the hair, as well as the nails and skin.
Integumentary System
The skin is part of the integumentary system.