 <translate> The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or abrasion from outside. The integumentary system includes hair, scales, feathers, hooves, and nails. It has a variety of additional functions; it may serve to waterproof, cushion, and protect the deeper tissues, excrete wastes, and regulate temperature, and is the attachment site for sensory receptors to detect pain, sensation, pressure, and temperature. In most land vertebrates with significant exposure to sunlight, the integumentary system also provides for vitamin D synthesis.

What are the two parts of the integumentary system? OK. Let's think. My stream of consciousness: <yor> Ètò ara tí ó kún fún awọ ara àti àwọn ohun tí ó wà nínú rẹ̀ ni ó ń dáàbò bo ara láti oríṣiríṣi ìpalára, bí òfò omi tàbí ìpalára láti ìta. Àwọn nǹkan tó wà nínú ẹ̀yà ara yìí ni irun, èèpo, ìyẹ́, ẹsẹ̀, àti ìṣó. Ó tún máa ń ṣe àwọn nǹkan míì, irú bíi kó má ṣe jẹ́ kí omi wọ inú ẹ̀jẹ̀, kó lè mú kí ẹ̀yà ara tó jinlẹ̀ nínú ẹ̀jẹ̀ má ṣàn, kó lè mú kí ẹ̀yà ara tó wà nínú ẹ̀jẹ̀ jáde, kó lè mú kí ara máa gbóná, kó sì lè mú kí ara máa gbóná. Nínú ọ̀pọ̀lọpọ̀ àwọn ẹranko tí ó ní ẹ̀yà-ẹ̀yìn ní ilẹ̀ tí ó ní ìfarakanra pẹ̀lú ìmọ́lẹ̀ oòrùn, ẹ̀yà-ẹ̀yà ara tí ó ní ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà-ẹ̀yà.  Kí ni àwọn apá méjì tó para pọ̀ jẹ́ òpó ẹ̀jẹ̀? Ó dáa. Ẹ jẹ́ ká ronú. Ìmọ̀lára mi: 