der Schädel
skull
The bone structure of the head in vertebrates that encloses the brain.
Der Arzt untersuchte das Röntgenbild des Schädels auf Frakturen.
The doctor examined the X-ray image of the skull for fractures.

skull
Loading your saved state.
skull
The bone structure of the head in vertebrates that encloses the brain.
Der Arzt untersuchte das Röntgenbild des Schädels auf Frakturen.
The doctor examined the X-ray image of the skull for fractures.

The meaning of 'Schädel' (skull/head) depends strongly on the context. In medicine, it is the bone; colloquially, it means the head (often when in pain); and as an image, it is a symbol of danger.
Im Biologieunterricht haben wir einen menschlichen Schädel betrachtet.
In biology class, we looked at a human skull.
Colloquially, 'Schädel' (head) often replaces the word 'Kopf' (head), especially in fixed expressions. If someone says 'mir brummt der Schädel' (my head is pounding), it means they have a bad headache.
Nach der langen Prüfung raucht mir der Schädel.
After the long exam, my head is spinning.
As a symbol, the skull, often with crossed bones, stands for mortal danger or poison. You find this pictogram on warning signs or packaging for toxic substances.
Auf der alten Piratenflagge war ein weißer Schädel abgebildet.
A white skull was shown on the old pirate flag.
In science (medicine, biology, archaeology), 'der Schädel' (the skull) is the neutral and correct term for the bones of the head. It is used in technical terms such as 'Schädelbasisbruch' (basal skull fracture).
Der häufigste Unfall bei Fahrradfahrern ohne Helm ist eine Verletzung des Schädels.
The most common accident among cyclists without helmets is an injury to the skull.
head
'der Kopf' and 'der Schädel' both refer to something in the upper part of the body. 'Kopf' is the normal word for the whole body part, including the face, hair, eyes, and mouth. 'Schädel' more specifically means the bone structure of the head. Colloquially, 'Schädel' can also simply mean 'head', but then it often sounds rougher or less neutral. That is why learners may confuse the words. In normal everyday situations, 'Kopf' is usually appropriate; when talking about bones, injuries, or medicine, 'Schädel' is more precise.

Nach dem Unfall wurde der Schädel im Krankenhaus untersucht.
After the accident, the skull was examined in the hospital.
Du hast dir beim Aussteigen den Kopf am Türrahmen gestoßen.
You bumped your head on the door frame while getting out.