Starting at the top and working our way down, with some miscellaneous bits at the end:

• Head: رأس (raʾs)
  
• Face: وَجه (wajh)
  
• Eye: عين (ʿayn, plural is عُيون ʿuyūn, dual is عينان ʿaynān but use the plural)
  
• Eyelash: رِمش (rimsh, plural رُموش rumūsh)
  
• Eyebrow: حاجِب العين (ḥājib al-ʿayn, dual حاجِبان ḥājibān, plural حَواجِب ḥawājib)
  
• Ear: سَمع (samʿ, plural اسماع asmāʿ) or اذن (udhn, plural آذان ādhān)
  
• Nose: أنف (anf, pl. آناف ānāf or انوف unūf)
  
• Mouth: فُم (fumm, pl. افمام afmām)
  
• Lip: شَفة (shafah, pl. شِفاه shifāh)
  
• Tongue: لُغة (lughah, can also mean “language”)
  
• Cheek: خَد (khadd, dual خَدان khaddān, pl. خُدود khudūd)
  
• Beard: لِحية (liḥyah)
  
• Mustache: شارِب (shārib, often dual شارِبان shāribān)
  
• Chin: ذَقن (dhaqin or dhaqn)
  
• Neck: عُنق (ʿunuq or ʿunq)
  
• Shoulder: كَتِف (katif or kitf, pl. اكتاف aktāf)
  
• Arm: ذِراع (dhirāʿ, pl. أذرُع adhruʿ)
  
• Elbow: كوع (kūʿ)
  
• Wrist: مِعصَم (miʿṣam, مَعاصِم pl. maʿāṣim)
  
• Finger: إصبَع (iṣbaʿ), pl. أصابِع (aṣābiʿ)
  
• Thumb: إبهام (ibhām); this can also mean “big toe,” so to specify the one on the hand you’ll need to say إبهام اليَد (ibhām al-yad)
  
• Hand: يَد (yad)
  
• Chest: صَدر (ṣadr)
  
• Belly/Abdomen: بَطن (baṭn)
  
• Back: ظُهر (ẓuhr)
  
• Butt: مؤخَرة (muʾakhkharah), كَفَل (kapal), or رِدف (ridf)
  
• Genitalia: قَضيب (qaḍīb, penis), مَهبَل (mahbal or mahbil, vagina)
  
• Leg: ساق (sāq)
  
• Thigh: فَخِذ (fakhidh)
  
• Knee: رُكبة (rukbah)
  
• Ankle: كاحِل (kāḥil) or كَعب (kaʿb)
  
• Heel: كَعب (kaʿb)
  
• Foot: قَدَم (qadam)
  
• Toe: إصبَع القَدَم (iṣbaʿ al-qadam), pl. أصابِع القَدَم (aṣābiʿ al-qadam), lit. “finger of the foot”
  
• Skin: بَشَرة (basharah) or جِلد (jild)
• Hair: شَعر (shaʿr, a single hair is شَعرة shaʿrah)
  
• Nail (finger or toe, not the metal kind): ظُفُر (ẓufur or ẓufr), pl. اظفار (aẓfār) or اظافِر (aẓāfir)